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Cast Iron Tank

Rare Art Deco Cast Iron Aquarium Fish Tank by Jewel
Located in Chicago, IL
Rare deco cast iron aquarium fish tank by Jewel. As shown in original catalog page, This is the
Category

20th Century American Art Deco Planters and Jardinieres

Materials

Metal

1800s French Cast Iron Betty Rooster Oil Lamp France
Located in Chula Vista, CA
Fine French handcrafted cast iron Oil Betty Lamp with decorative Rooster 1800s Known as a 'Betty
Category

Antique 19th Century French Louis XIV Lanterns

Materials

Iron

Original Charleston Battery Bench Cast Iron & Painted Cypress, 6 ft. double size
By Geo. C. BIrlant & Co.
Located in Charleston, SC
This is the original Charleston Battery Bench with heaviest weight cast iron sides made from the
Category

21st Century and Contemporary American Victorian Benches

Materials

Iron

Original Charleston Battery Bench Cast Iron & Painted Cypress, 6 ft. double size
By Geo. C. BIrlant & Co.
Located in Charleston, SC
This is the original Charleston Battery Bench with heaviest weight cast iron sides made from the
Category

21st Century and Contemporary American Victorian Benches

Materials

Iron

Fine French Cast Iron Oil Betty Rooster Lamp 18th Century France Louis XIV
Located in Chula Vista, CA
Oil Lamp Fine French handcrafted cast iron oil Betty lamp with decorative rooster 18th century
Category

Antique Early 19th Century French Louis XIV More Lighting

Materials

Iron

Orig. CHARLESTON BATTERY BENCH, Lowcountry Cypress & Cast Iron, Dk. Green, 4 ft.
Located in Charleston, SC
This is the BIRLANT exclusive original CHARLESTON BATTERY BENCH with heaviest weight cast iron
Category

Antique Late 19th Century American Victorian Benches

Materials

Enamel, Iron

ORIGINAL CHARLESTON BATTERY BENCH, Cast Iron and Lowcountry Cypress, 8-ft. size
Located in Charleston, SC
This is the original Charleston Battery Bench with heaviest weight cast iron sides made from the
Category

Antique Late 19th Century American Victorian Benches

Materials

Iron

1910s Vintage Industrial Toledo Metals Company Factory Office Break Table Rare
By Toledo Metal Furniture Co.
Located in Hyattsville, MD
black enameled steel base. Fully intact, balanced and built like a tank. Retains original Toledo metal
Category

Vintage 1910s American Industrial Coffee and Cocktail Tables

Materials

Steel, Iron

French Art Nouveau Umbrella Stand, 1900
By Atelier Design
Located in Saint-Amans-des-Cots, FR
tank). Height: 23.6"(60cm), Width: 16"(41cm), Depth: 8.2"(21cm). Marked "Cast Iron" and "Made in France
Category

Early 20th Century French Art Nouveau Umbrella Stands

Materials

Iron

French Art Nouveau Umbrella Stand, 1900
French Art Nouveau Umbrella Stand, 1900
H 23.63 in W 16.15 in D 8.27 in
French Art Nouveau Umbrella Stand, 1900
By Studio Art Deco
Located in Saint-Amans-des-Cots, FR
French Art Nouveau umbrella stand, France, ca.1900. Patinated cast iron. Removable tank. Height
Category

Early 20th Century French Art Nouveau Umbrella Stands

Materials

Iron

French Art Nouveau Umbrella Stand, 1900
French Art Nouveau Umbrella Stand, 1900
H 28.67 in W 23.43 in D 10.24 in
Stunning & Rare Art Deco Etched Glass & Metal Moonfish Theme Aquarium Table Lamp
By Muller Fres Lunneville
Located in Lisse, NL
, practical size iron and glass table lamp with a redback moonfish etched and two koi carp theme inside a
Category

Early 20th Century French Art Deco Table Lamps

Materials

Metal, Iron

Vintage Professional Tape Dispenser by Nopifan, 1930s
Located in Esbjerg, DK
A patented stationary tape dispenser from the Danish Company Nopifan. Its made from enameled cast
Category

Vintage 1930s Danish Bauhaus More Desk Accessories

Materials

Iron

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Hans-Agne Jakobsson 'Mini-Tratten' Verdigris Patinated Outdoor Sconce
By Hans-Agne Jakobsson, Örsjö Industri AB
Located in Glendale, CA
Hans-Agne Jakobsson 'Mini-Tratten' verdigris patinated outdoor sconce. An exclusive made for U.S. and UL listed authorized re-edition of the classic Swedish design executed in rich v...
Category

21st Century and Contemporary Swedish Scandinavian Modern Wall Lights an...

Materials

Metal

Mid-Victorian Moorish Wrought & Cast Iron Pergola or Decorative Garden Structure
Located in London, GB
A monumental Moorish mid-Victorian wrought iron Pergola or Decorative Garden Structure, a masterpiece in High Victorian ironwork design. This Pergola was built around the same time a...
Category

Antique Late 19th Century European Moorish Architectural Elements

Materials

Wrought Iron

Large Water Fountain in Ceramic Mineral Finish
Located in Madrid, ES
Water fountain in hand painted ceramic. Decorative ceramic fountain antique finish.
Category

21st Century and Contemporary Architectural Elements

Materials

Ceramic

Large Water Fountain in Ceramic Mineral Finish
Large Water Fountain in Ceramic Mineral Finish
H 61.03 in W 118.12 in D 118.12 in
Stunning C.W.S Art Deco Walnut Brown Double Wardrobe on Wheels Part of a Set
By Walnut Cabinet Works
Located in GB
We are delighted to offer for sale this gorgeous C.W.S cabinet works Birmingham walnut Art Deco double wardrobe. This piece is a part of a suite, with a ladies' wardrobe, a double...
Category

Early 20th Century English Art Deco Wardrobes and Armoires

Materials

Walnut

PAIR OF FULLY RESTORED VICTORIAN GARDEN BENCHES WiTH LION'S HEADS NEW TIMBER
Located in GB
Royal House Antiques Royal House Antiques is delighted to offer for sale this beautiful pair of fully restored Victorian cast iron garden benches with new timber and fitting bolts ...
Category

Antique 19th Century English Victorian Benches

Materials

Iron

French Style Wrought Iron Greenhouse with Door and Windows in White Color
Located in Marbella, ES
French style wrought iron greenhouse with doors and windows that open outwards in white color. Ready for glass panels to be installed.
Category

2010s French Garden Ornaments

Materials

Iron

Andrianna Shamaris Teak Wood Antique Hand Carved Bench or Side Table
By Andrianna Shamaris
Located in New York, NY
This antique hand carved panel was originally part of an outside structure. We bleached the teak carving, added a little white wash and added the legs. Great as a bench or side table...
Category

2010s Organic Modern Benches

Materials

Wood, Teak, Reclaimed Wood

Re-Purposed Industrial Ship Hatch Captain's Lounge Chair
Located in Lafayette, IN
This custom-made piece started its life as an authentic US Naval scuttle hatch that was then re-imagined in our workshop as a truly unique lounge chair. Hatch was cleaned, polished, ...
Category

21st Century and Contemporary American Industrial Lounge Chairs

Materials

Brass, Steel

Vintage 1949 Mid-Century Modern Custom L-Shaped Office Desk by George Nelson
By George Nelson, Herman Miller
Located in Lafayette, IN
This remarkable piece is a one-off desk/wardrobe/bar/bookcase/storage cabinet custom-designed by George Nelson in 1949 to match his Basic Cabinet Series (BCS) for Herman Miller. The ...
Category

Vintage 1940s American Mid-Century Modern Desks

Materials

Aluminum

La Restauration Garden Chairs, France, circa 1880
Located in Paris, FR
Six 1880s garden metal and wood chairs, from the restaurant "La Restauration" in the park of the city of Vichy, center of France. In good condition.  
Category

Antique 1880s French Patio and Garden Furniture

Materials

Iron

Antique Country French Hall Bench
Located in Dallas, TX
Antique Country French Hall Bench will add a touch of provincial flair to any room or hallway, plus the added convenience of a place to sit, and even a bit of storage under the seat,...
Category

Mid-20th Century French French Provincial Benches

Materials

Oak

Antique Country French Hall Bench
Antique Country French Hall Bench
H 49.5 in W 43.5 in D 17 in
4D Sideboard by Angelo Mangiarotti for Molteni, Lacquered Wood & Granite, 1970s
By Alessandro Mendini
Located in Antwerp, BE
Sideboard; red lacquered; wood; granite; 1970s; Italy; Italian Design; 4D Sideboard by Angelo Mangiarotti for Molteni; Modular storage unit by Italian designer Angelo Mangiarotti fo...
Category

Vintage 1970s Italian Modern Sideboards

Materials

Granite

Goodland Wood Burning Hot Tub '2-3 Person'
Located in Vancouver, B.C.
Wood fired bathing in a tub creates the most elemental and authentic outdoor bathing experience. If you’ve ever soaked in water heated only by wood, you’ll know it's much richer ...
Category

2010s Canadian Patio and Garden Furniture

Materials

Aluminum

'1' Vintage Wrought Iron Outdoor Bench
Located in Pasadena, TX
1 Antique metal outdoor patio bench. This charming outdoor or patio bench has a natural oxidized finish. The bench has a slatted curved seat with scroll details on the arms. We...
Category

Mid-20th Century North American Victorian Benches

Materials

Wrought Iron

Wrought Iron Art Deco Pergola, France, 1920s
Located in Isle Sur La Sorgue, Vaucluse
Rare and very pretty octagonal Art Deco wrought iron pergola, decorated with geometric motifs. Riveted zinc roof. Original red paint.
Category

Early 20th Century French Art Deco Architectural Elements

Charles II Walnut, Mulberry Marquetry Cabinet, Gilt Stand, 17th C H.F. du Pont
Located in Brooklyn, NY
Charles II walnut and mulberry marquetry cabinet on giltwood stand, c. 1650-1670. Giltwood cresting and stand appear to be from a few decades later. The form of furniture now descr...
Category

Antique Mid-17th Century British Charles II Cabinets

Materials

Walnut

Recent Sales

Victorian Fish Tank or Cast Iron Aquarium
By Fiske Or Mott
Located in Long Island, NY
A Victorian cast iron fish yank. An all original Victorian aquarium, late 19th century. retains
Category

Antique 1890s American Victorian Urns

Materials

Iron

Fiske Cast Iron Antique Aquarium or Fish Tank
By J.W. Fiske & Company
Located in Long Island, NY
This is a J W Fiske Cast Iron Fish tank or aquarium. It is in original as found condition. I have
Category

Early 20th Century American Victorian Garden Ornaments

Materials

Iron

19th Century Victorian Industrial Cast Iron Long Table
Located in Debenham, Suffolk
Unusual long work table, circa 1890. Cast iron bases on wheels from the Victorian period with a
Category

Antique Late 19th Century European Industrial Industrial and Work Tables

Materials

Iron

20th Century Cast Iron Dining Table Desk
Located in Debenham, Suffolk
Stunning table that was created from a iron tank in the 1950's. Superb as dining table or would
Category

Vintage 1950s English Desks and Writing Tables

Materials

Iron

20th Century Cast Iron Dining Table Desk
20th Century Cast Iron Dining Table Desk
H 29.5 in W 79.5 in D 40.5 in
Antique Cast Iron Wall Fountain, France, Late 19th Century
Located in Chappaqua, NY
Antique cast iron wall fountain, France, late 19th century. Enameled water tank with original
Category

Antique Late 19th Century French French Provincial Garden Ornaments

Materials

Iron

Iron Table (Made from 1920s-Era Ocean Liner)
Located in Austin, TX
liner that sailed from the Port of Antwerp, Belgium. Featuring slabs of riveted cast iron, rounded
Category

Early 20th Century Belgian Coffee and Cocktail Tables

Collection of Architectural Stars and Windmill Weights
Located in Santa Monica, CA
. Two cast iron stars made as a water tank gauge by the U.S. Wind and Pump Company
Category

Early 20th Century American Architectural Elements

Materials

Iron

19th Century American Early Washing Machine with Mangle
Located in Forney, TX
operated metal agitator inside the tank, hinged lid, multiple cast iron gears, handle, rising on short
Category

Antique 19th Century Primitive Historical Memorabilia

Materials

Iron

Unique Finned Industrial Cooling Coil Chandeliers
Located in Peekskill, NY
. The cores are hollow cast iron. These are similar to the early radiators found in homes but shaped
Category

20th Century American Chandeliers and Pendants

Materials

Iron

Delta Ashtray by Antoni Bonamusa for Ciervo industrial, Silver Delta Award 1966
By Antoni Bonamusa Homs, Ciervo Industrial
Located in Escalona, Toledo
other materials are used at its ends in order to optimize its operation. Thus, the lower base has a cast
Category

Mid-20th Century Spanish Mid-Century Modern Ashtrays

Materials

Aluminum, Steel, Iron

Super Rare I.P. Frink, Ten Light Chandelier
By I.P. Frink
Located in Peekskill, NY
continuous ring. The tank still shows some go the original pin stripping. The lamp even has the cast iron 6
Category

Antique 19th Century American Industrial Chandeliers and Pendants

Early American Cast Iron Aquarium
Located in Haddonfield, NJ
Early 1900s-1910s rectangular Rococo style fish tank with four gilded heads of griffens and hooves
Category

Early 20th Century American Nautical Objects

Materials

Iron

Early American Cast Iron Aquarium
Early American Cast Iron Aquarium
H 45 in W 43 in D 30 in
Victorian Style Cast Iron Fish Aquarium
Located in San Francisco, CA
Victorian style cast iron fish aquarium, that could also be used as an terrarium. No makers mark
Category

Vintage 1920s Unknown Victorian Planters and Jardinieres

Materials

Copper, Iron, Brass

Original Charleston Battery Bench, Lowcountry Cypress, Cast Iron, dark green
Located in Charleston, SC
This is the BIRLANT exclusive original Charleston Battery Bench with heaviest weight cast iron
Category

21st Century and Contemporary American Victorian Benches

Materials

Enamel, Iron

French Art Nouveau Umbrella Stand, 1900
Located in Saint-Amans-des-Cots, FR
French Art Nouveau umbrella stand, France, ca.1900. Enameled cast iron (fixture and tank). Height
Category

Early 20th Century French Art Nouveau Umbrella Stands

Materials

Iron

French Art Nouveau Umbrella Stand, 1900
French Art Nouveau Umbrella Stand, 1900
H 23.31 in W 16.03 in D 6.89 in
Decorative Iron Base
Located in New York, NY
Decorative cast iron base, possibly originally for a fish tank. Can be used as a console table
Category

Early 20th Century American Console Tables

Materials

Iron

Decorative Iron Base
Decorative Iron Base
H 29.5 in W 25 in D 12.5 in
Fiske Cast Iron Fish Tank
By J.W. Fiske & Company
Located in Long Island, NY
A late 19th century cast iron fish tank by J W Fiske, NY. The fish tank has just been repainted
Category

Antique 1880s American Folk Art Garden Ornaments

Materials

Iron

Fiske Cast Iron Fish Tank
Fiske Cast Iron Fish Tank
H 48 in W 28 in D 28 in
Fiske Cast Iron Fish Tank
Located in Long Island, NY
A Labeled J.W. Fiske Park Place N.Y. cast iron fish tank. The base adorned with 3 beautifully
Category

Antique 19th Century American Garden Ornaments

Materials

Iron

Fiske Fish Tank in Victorian Cast Iron
By J.W. Fiske & Company
Located in Long Island, NY
Marvelous and rare Cast Iron Fish tank by Fiske NY. As you can see this wonderful piece is
Category

Antique 19th Century American Folk Art Garden Ornaments

Materials

Iron

J. W. Fiske Victorian Cast Iron Aquarium Fish Tank
By J.W. Fiske & Company
Located in North Hollywood, CA
today in this condition. Being solid cast iron, there is substantial weight and solidity to the unit
Category

Antique 1890s American Victorian More Furniture and Collectibles

Materials

Iron

Large Cast Iron Roses
Located in Llandudno, Conwy
A pair of large cast iron rose architectural elements. Polychrome painted and gilded, one has
Category

Early 20th Century British Art Deco More Furniture and Collectibles

Materials

Iron

Large Cast Iron Roses
Large Cast Iron Roses
H 27.56 in W 27.56 in D 3.15 in
Victorian Aquarium with six sides and three-legged ornate cast-iron base
Located in Madison, WI
Victorian-era fish tank/aquarium completely restored to original condition; ornate cast iron
Category

Antique 19th Century American Architectural Elements

Materials

Iron

Victorian Fish Tank
Located in Brooklyn, NY
A classic Victorian iron and glass fish tank with highly detailed cast frame and cork screw finials.
Category

Early 20th Century American More Furniture and Collectibles

Victorian Fish Tank
Victorian Fish Tank
H 14.5 in W 29.5 in D 14 in
Industrial Table Made from Old Tanks( ref. PAR1)
Located in San Francisco, CA
Cast Iron table made from old factory tanks with rivetted and studded trim . Cut-out on front and
Category

Early 20th Century French Industrial and Work Tables

Materials

Iron

Bronzed Seahorse Aquarium by Jewel Co. Chicago c. 1926
Located in North Hollywood, CA
Co in Chicago, Il. This company was known for it's elaborate work in cast iron. The 20 gallon tank
Category

20th Century American Architectural Elements

Materials

Slate, Wrought Iron

Wood Fired Campaign Field Shower
Located in Llandudno, Conwy
Campaign field shower. The copper water tank supported on a cast iron wood burner, brass and
Category

Antique Late 19th Century British Campaign More Furniture and Collectibles

Materials

Copper, Iron

Wood Fired Campaign Field Shower
Wood Fired Campaign Field Shower
H 83.47 in W 16.93 in D 16.93 in
Industrial Coffee Table
Located in Millwood, VA
A cast iron hand shaped and cut antique water tank to form a unique coffee/side table. The large
Category

Antique 19th Century Scottish Coffee and Cocktail Tables

Industrial Coffee Table
Industrial Coffee Table
H 15 in W 24 in D 16 in
Original Machine Age John Vassos Turnstile for Perey, circa 1938
By John Vassos
Located in Dallas, TX
and enameled steel, with cast steel or iron base. Original Classic green enamel. Excellent
Category

Vintage 1930s American Art Deco Architectural Elements

20th Century Designer Iron & Glass Fish Tank or Planter
Located in Lakewood, NJ
Extremely unique item, probably the only one of its kind in existence. This iron and glass planter
Category

Mid-20th Century American American Classical Planters, Cachepots and Jar...

Materials

Iron

Large Victorian Cast Iron Arched Window Mirror from The Old Brighton Aquarium
Located in Heathfield, East Sussex
A handsome and large Victorian cast iron arched window mirror. Originally a reclaimed cast iron
Category

Antique 1870s English Victorian Mantel Mirrors and Fireplace Mirrors

Materials

Iron

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Cast Iron Tank For Sale on 1stDibs

At 1stDibs, there are many versions of the ideal cast iron tank for your home. A cast iron tank — often made from metal, iron and wood — can elevate any home. If you’re shopping for a cast iron tank, we have 8 options in-stock, while there are 2 modern editions to choose from as well. Your living room may not be complete without a cast iron tank — find older editions for sale from the 19th Century and newer versions made as recently as the 21st Century. A cast iron tank, designed in the Victorian, Art Deco or Art Nouveau style, is generally a popular piece of furniture. You’ll likely find more than one cast iron tank that is appealing in its simplicity, but Toledo Metal Furniture Co. produced versions that are worth a look.

How Much is a Cast Iron Tank?

Prices for a cast iron tank can differ depending upon size, time period and other attributes — at 1stDibs, they begin at $498 and can go as high as $5,500, while the average can fetch as much as $1,035.
Questions About Cast Iron Tank
  • 1stDibs ExpertMay 3, 2024
    The difference between iron and cast iron comes down to content. Iron is generally pure iron, a chemical element that is a solid metal at room temperature. Cast iron is a mix of iron, carbon, silicon, manganese, sulfur, phosphorus and other elements. Both iron and cast iron can be used to produce furniture, cookware, decorative objects and other items. Generally, cast iron is heavier than iron. Shop an assortment of iron and cast iron pieces on 1stDibs.
  • 1stDibs ExpertMay 3, 2024
    The name of the person who invented cast iron is unknown. However, anthropologists and archaeologists have determined that the ancient Chinese were the first to develop it. The earliest known examples of cast iron date back to the 6th century B.C. Cast iron production didn't begin in Europe until the 14th century A.D. Shop a collection of cast iron furniture and decorative objects on 1stDibs.
  • 1stDibs ExpertMay 5, 2023
    Cast iron columns are vertical supports produced out of cast iron, a material made from iron and alloys with a carbon content of more than two percent. During the 19th century, cast iron columns were used in architecture. Today, they primarily function as decorative objects. Shop a range of cast iron columns on 1stDibs.
  • 1stDibs ExpertMarch 31, 2023
    Whether cast iron columns are hollow depends on the piece. Most cast iron columns are hollow due to the manner of crafting, but some are solid. On 1stDibs, find a selection of columns.
  • 1stDibs ExpertMarch 22, 2022
    A cast iron fireplace insert is a firebox that fits into an existing fireplace surround. The insert is made of cast iron, a type of iron that is more than 2 percent carbon. Cast iron is highly durable and very resistant to the effects of heat. You'll find a selection of cast iron fireplace inserts on 1stDibs.
  • 1stDibs ExpertAugust 17, 2021
    Cast iron trivets are used for many things but are especially ideal for slow cooking meat. They can prop up food in Dutch ovens to prevent burning and increase heat distribution.
  • 1stDibs ExpertFebruary 17, 2023
    Yes, you can generally use cast iron as a planter because the material is durable and sturdy. However, you may need to drill drainage holes in a cast iron piece that wasn't intended to function as a planter to allow excess water to exit the vessel. On 1stDibs, find a selection of cast iron planters.
  • 1stDibs ExpertAugust 24, 2021
    Yes, cast iron firebacks are quite sturdy and work really well. As they are made of solid iron, it's a challenge to move and place them. Given that, cast iron firebacks are the best protection for the back wall of the fireplace. Find a variety of firebacks on 1stDibs.
  • 1stDibs ExpertSeptember 25, 2019

    To keep a piece made of cast iron from rusting, place it in a cool, dry space with good air circulation.

  • 1stDibs ExpertMarch 22, 2022
    How to hang a cast iron bell depends on the style. Some cast iron bells have loops at the top that you can hang from a hook anchored onto your desired mounting surface. Others have brackets or frames that you can secure with mounting screws. On 1stDibs, shop a selection of cast iron bells.
  • 1stDibs ExpertSeptember 25, 2019

    Cast iron is stronger than steel.

  • 1stDibs ExpertMarch 22, 2022
    Cast iron doorstops originated in the late 18th century. Osbourn Dursey invented the first doorstop in 1878. Decorative cast iron stops became popular in the 1920s and remained so throughout World War II. On 1stDibs, shop a variety of antique cast iron doorstops.
  • 1stDibs ExpertMay 5, 2023
    Yes, cast iron tables can rust. Pieces are more likely to develop rust when exposed to humidity, such as in bathrooms or outdoor living spaces in coastal areas. Wiping surfaces clean regularly and touching up scratches and chips can reduce the risk of rust. On 1stDibs, shop a selection of cast iron tables.
  • 1stDibs ExpertFebruary 22, 2021
    Cast iron beds were made starting in the 1850s. These types of beds were handmade until World War I through the use of molds.
  • 1stDibs ExpertSeptember 25, 2019

    Yes, cast-iron furniture rusts.

  • 1stDibs ExpertApril 5, 2022
    Cast iron is frequently used for fireplaces due to its properties. The metal is highly durable, allowing it to hold up to the effects of frequent use. It also readily conducts heat to help warm up interiors. You'll find a variety of cast iron fireplaces on 1stDibs.
  • 1stDibs ExpertMarch 31, 2023
    Cast iron is often used for benches because of its characteristics. Its strength makes it well-suited to support the weight of two or more adults, and its hardness allows it to resist damage due to weather exposure. Shop a range of cast iron benches on 1stDibs.
  • 1stDibs ExpertSeptember 25, 2019

    Unlike cast iron, wrought iron is not brittle and will bend rather than break. Wrought ironwork is produced with a hammer and anvil and tends to be more intricate than cast ironwork, which is characterized by repetitive designs that can be carved into a wooden pattern and cast. 

  • 1stDibs ExpertMay 5, 2023
    Whether cast iron is good for outdoor furniture is largely a matter of personal opinion. However, many people prefer cast iron due to its strength, durability and timeless Old World charm. On 1stDibs, find a collection of cast iron outdoor furniture.
  • 1stDibs ExpertJune 30, 2023
    To tell if a cast iron doorstop is valuable, always look for original paint. Any that have been repainted or repaired will have diminished in value. You can also use online resources to try and research items, but the best way to find out if a cast iron doorstop is worth anything is to consult a certified appraiser. An experienced professional can evaluate the condition, determine the maker and research the piece to assign an approximate value. On 1stDibs, find a range of doorstops.