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"Jean Cocteau" by Keystone-France
Located in London, GB
"Jean Cocteau" by Keystone-France Portrait in the 1920s or 1930s of the writer Jean Cocteau in a
Category

1920s Modern Antique Keystone

Materials

Black and White

Dated Red Sandstone Keystone
Located in Grange-Over-Sands, GB
A rare 1825 dated keystone, with the initials M I M. Carved from red lazonby sandstone.
Category

1820s Antique Keystone

Materials

Sandstone

Antique Dated Red Sandstone Keystone
Dated Red Sandstone Keystone
H 22.45 in W 19.3 in D 15.75 in
Keystone Cops Cast Portrait
Located in Austin, TX
The Keystone Cops (often spelled Keystone Kops) are fictional, humorously incompetent policemen
Category

1910s Contemporary Antique Keystone

Materials

Archival Paper, Archival Ink, Archival Pigment

Antique Keystone Cops Cast Portrait
Keystone Cops Cast Portrait
H 16 in W 20 in D 1 in
Keystone Broom Corn Advertising Sign
Located in San Francisco, CA
Keystone broom corn supplies metal advertising sign 22.75" x 25.5"
Category

19th Century American Antique Keystone

Materials

Metal

Antique Keystone Broom Corn Advertising Sign
Keystone Broom Corn Advertising Sign
H 25.5 in W 22.75 in D 1.75 in
Coade Style Keystone of Democritus
Located in Wormelow, Herefordshire
Coade style Keystone of Democritus. A brilliant keystone of Democritus, an Ancient Greek
Category

Early 19th Century Antique Keystone

Materials

Terracotta

Antique Coade Style Keystone of Democritus
Coade Style Keystone of Democritus
H 22.64 in W 11.82 in D 9.85 in
19th Century Victorian Marble Fireplace Mantle Keystone
Located in Vero Beach, FL
19th Century Victorian Marble Fireplace Mantle Keystone Delicately carved architectural cartouche
Category

19th Century Antique Keystone

Materials

Carrara Marble

Antique Carved Limestone Keystone of a Queen
Located in Wormelow, Herefordshire
An antique carved limestone keystones of a Queen, salvaged from a period building in East Anglia
Category

Mid-18th Century English Georgian Antique Keystone

Materials

Stone, Limestone, Steel

Antique Carved Limestone Keystone of a Queen
Antique Carved Limestone Keystone of a Queen
H 16.93 in W 9.85 in D 7.09 in
Antique Limestone Keystone of an English King
Located in Wormelow, Herefordshire
An antique carved limestone keystones of an English king, salvaged from a period building in East
Category

Mid-18th Century English Georgian Antique Keystone

Materials

Stone, Limestone, Steel

Antique Limestone Keystone of an English King
Antique Limestone Keystone of an English King
H 16.93 in W 9.45 in D 7.09 in
Large Antique Stoneware Keystone Attributed to Blanchard
By Blanchard
Located in Wormelow, Herefordshire
A very large and unusual antique stoneware keystone attributed to Blanchard (unsigned), circa 1865
Category

Mid-19th Century English Georgian Antique Keystone

Materials

Stoneware

Victorian Portland Stone Keystone Heads, 17th Century
Located in London, GB
A set of Five Victorian Portland Stone Keystone Heads Three depicted as the Green Man, with beards
Category

17th Century Victorian Antique Keystone

Materials

Marble

A Coade Keystone of Minerva Dated 1794
Located in Wormelow, Herefordshire
A Coade Keystone of Minerva Dated 1794. Stamped Coade, London, and is dated 1794. Minerva is known
Category

Late 18th Century Antique Keystone

Materials

Coade Stone

A Coade Keystone of Minerva Dated 1794
A Coade Keystone of Minerva Dated 1794
H 10.04 in W 7.29 in D 8.08 in
3 Monumental Antique Carved Keystones London Building Facade
Located in Ware, GB
Magnificent Portland stone Keystones, reclaimed from Lower Regents Street, London. The impressive
Category

19th Century British Baroque Antique Keystone

Materials

Stone

Antique Lipscombe & Co Glazed Terracotta Green Man Keystone
Located in Wormelow, Herefordshire
An antique Lipscombe & Co glazed terracotta keystone of a Green Man mask, reclaimed from a British
Category

Late 19th Century English Georgian Antique Keystone

Materials

Terracotta

Continental '19th Century' Porcelain Keystone Shaped Wall Mirror
Located in Queens, NY
Continental, possibly German, '19th centurty' white porcelain keystone shaped wall mirror with
Category

19th Century German Neoclassical Antique Keystone

Materials

Porcelain

Continental '19th Century' Porcelain Keystone Shaped Wall Mirror
Located in Queens, NY
Continental (possibly German 19th century) white porcelain keystone shaped wall mirror with yellow
Category

19th Century German Neoclassical Antique Keystone

Materials

Porcelain

Antique Renaissance Style Carved Sandstone Corbel or Keystone
Located in St Annes, Lancashire
Wonderful stone carving of a kings face. Probably English. I have dated it at least, 19th century. It is most likely earlier than this. Difficult to be precise. Free UK shipping
Category

Mid-19th Century English Renaissance Antique Keystone

Materials

Sandstone

17th Century Spanish Pair of Hand Carved Church Arched Vault Keystones
Located in Marbella, ES
17th century Spanish pair of hand carved church arched vault keystones.
Category

17th Century European Antique Keystone

Materials

Stone

Antique Keystone by Whiting Youth Sterling Silver Fork, Knife & Spoon Boxed Set
By Whiting Manufacturing Company
Located in Philadelphia, PA
A fine boxed youth utensil set. By Whiting. In sterling silver. In the Keystone pattern
Category

Early 20th Century American Aesthetic Movement Antique Keystone

Materials

Sterling Silver

Yellow Gold York Rite Victorian Royal Arch Keystone Fob Pendant 14k Agate Mason
Located in Greensboro, NC
Information Natural Agate Style: Fob Theme: Royal Arch Keystone Measurements Tall (from stationary bail): 31
Category

1870s Antique Keystone

Materials

14k Gold, Yellow Gold

Antique Howard Keystone 14k Gold 45mm Open Face Pocket Watch Size 12s Model 1912
By Howard & Co., New York
Located in Montclair, NJ
Watchmaker: Howard Watch Co. Movement Type: Model 1912 - Mechanical - Hand Wound - 19 Jewels - Size 12s - American Made Movement Serial No.: 1307786 Case Maker: The K.W.C.Co. Case ...
Category

1910s American Antique Keystone

Materials

14k Gold

16th Century Spanish Keystone Wedged Where Arches Meet at the Apex of a Vault
Located in Marbella, ES
16th century Spanish round shaped keystone wedged in the ceiling, where arches meet the apex of a
Category

16th Century European Antique Keystone

Materials

Stone

English Corner Cabinet of Pine from the Georgian Era
Located in Austin, TX
, featuring crown moulding, a moulded column arch with decoratively-carved keystone, scroll-work foliage and
Category

Early 19th Century English Georgian Antique Keystone

Materials

Metal, Brass

Victorian 14K Gold Masonic Royal Arch Pendant with Enamel and Engraving
Located in Venice, CA
This 14k gold keystone shaped pendant can be attributed to the Royal Arch Masonry Chapter of the
Category

1890s American Victorian Antique Keystone

Materials

14k Gold, Yellow Gold, Enamel

Corbel with an Angel Holding a Shield
- Burgundian Netherlands 15th century
Located in Bruxelles, BE
examples of sculpted corbels and keystones can be found in major institutional collections. Notable
Category

15th Century and Earlier Belgian Gothic Antique Keystone

Materials

Limestone

Early Victorian Statuary Marble Fireplace with Iron Insert
Located in London, GB
An early Victorian Statuary marble fireplace with cast iron insert, c.1850, the central keystone
Category

1850s English Early Victorian Antique Keystone

Materials

Statuary Marble

1891 Waltham Ladies Hunting Case Pocket Watch
By American Waltham Watch Co.
Located in Chapel Hill, NC
1891 Waltham Ladies Hunting Case Pocket Watch. 14k yellow gold filled. Case #6590704 by Keystone
Category

1890s American Aesthetic Movement Antique Keystone

Materials

Gold

A Queen Anne Blackened Sandstone Frame Chimneypiece
Located in London, GB
frieze is centred with a keystone carved in a patera of concentric leaves. Original sandstone insert
Category

Early 18th Century English Queen Anne Antique Keystone

Materials

Sandstone

Antique French Alep Breccia Marble Mantel
Located in Dallas, TX
. This exquisite piece showcases a hand-carved motif adorning the keystone, complemented by elegantly
Category

19th Century French Antique Keystone

Materials

Marble

Howard Stainless Steel Art Deco Exhibition Back Watch, circa 1920's
By Howard
Located in Long Beach, CA
acquired by the Keystone Watch Case Company. Keystone continued to produce Howard watches under the Howard
Category

1920s American Art Deco Antique Keystone

A Reclaimed 18th Century Style Bolection Stone Fireplace Mantel
Located in London, GB
frieze with plain incised keystone to centre. The C scrolled cushion moulding supporting a wide stepped
Category

Early 20th Century English Georgian Antique Keystone

Materials

Stone

Antique French White Veined Carrara Marble Mantel
Located in Dallas, TX
a central floral motif on the keystone and a floral leaf design adorning the tops of both legs. The
Category

1870s Antique Keystone

Materials

Carrara Marble

Architectural Welsh Low Dresser
Located in Greenwich, CT
banks of drawers flanking a central arched door with keystone and compass star inlay, and standing on
Category

Mid-18th Century Welsh Antique Keystone

Materials

Oak

Architectural Welsh Low Dresser
Architectural Welsh Low Dresser
H 33 in W 68 in D 23 in
Set of 6 Antique French Louis XVI Dining Chairs
Located in Dallas, TX
with keystone-shaped seatbacks contoured for comfort with dished out corners providing no sharp corners
Category

Early 20th Century French Louis XVI Antique Keystone

Materials

Fabric, Oak

Bronze okimono sculpture of a catfish or namazu
Located in PARIS, FR
, quite litteraly « keystone»). Sometimes the god can’t keep its concentration and the namazu take
Category

Early 20th Century Japanese Taisho Antique Keystone

Materials

Bronze

Edwardian Full Hunting Pocket Watch Circa 1910
By Elgin
Located in ADELAIDE, SA
calibrated. Inner front cover stamped – 4977004 Inner back cover stamped – 4977004 – Keystone – 14k
Category

1910s American Edwardian Antique Keystone

Materials

14k Gold

Howard 14Kt Solid Gold Open Faced Pocket Watch 1925 Flawless Enamel Dial
By Howard
Located in Long Beach, CA
Company was acquired by the Keystone Watch Case Company. Keystone continued to produce Howard watches
Category

1920s American Art Deco Antique Keystone

Materials

Gold

An Early 18th Century George I Irish Kilkenny Marble Frame Chimneypiece
Located in London, GB
With a fluted keystone, flanked by fielded panels to the frieze, on original footblocks. Height 57
Category

Early 18th Century Irish George I Antique Keystone

Materials

Marble

An Early 18th Century George I Irish Irish Kilkenny Marble Frame Chimneypiece
Located in London, GB
With a fluted keystone, flanked by fielded panels to the frieze, on original footblocks. Height
Category

Early 18th Century Irish George I Antique Keystone

Materials

Marble

19th-Century Carved Pine Lion’s Head Architectural Fragment, Mounted on Lucite
Located in Atlanta, GA
was likely a corbel, keystone, or decorative architectural mount, possibly adorning a doorway
Category

19th Century American Baroque Antique Keystone

Materials

Lucite, Pine

An Early 18th Century Irish Frame Chimneypiece in Kilkenny Fossil Marble
Located in London, GB
central stylised keystone. Dimensions Height 47½in (121cm) width 52in (132cm) Internal height 42in (107cm
Category

Early 18th Century Irish Antique Keystone

Materials

Marble

An Elegant Limestone Queen Anne Period Frame Chimneypiece
Located in London, GB
elegant keystone. Height 51 in (129cm) width 39 in (99cm) Internal height 32 in (81.5cm) width 37 1/2 in
Category

Early 18th Century English Queen Anne Antique Keystone

Materials

Limestone

Howard Stainless Steel Art Deco Exhibition Back Watch, circa 1920's
By Howard
Located in Long Beach, CA
Howard Watch Company was acquired by the Keystone Watch Case Company. Keystone continued to produce
Category

1920s American Art Deco Antique Keystone

Materials

Stainless Steel

Large White Marble Mortar 16th Century with carved Lateral Mascarons.
Located in Bonita Springs, FL
were typically placed on keystones, arches, fountains, facades or home objects. While they were
Category

16th Century Italian Baroque Antique Keystone

Materials

Marble

An Early Eighteenth Century Carrara Marble Fireplace of Geometric Form
Located in London, GB
An Early 18th Century Carrara Marble Fireplace. The frieze decorated with a central keystone with
Category

Early 18th Century English Georgian Antique Keystone

Materials

Marble, Carrara Marble

A Victorian Chimneypiece of Robust Architectural Form in Carrara Marble
Located in London, GB
A late Victorian Carrara marble fireplace with arched moulded opening, headed by a corbel keystone
Category

Late 19th Century English Late Victorian Antique Keystone

Materials

Marble, Carrara Marble

Biedermeier Secretaire with Hidden Compartement, Walnut, Austria circa 1820
Located in Greven, DE
formed by a round arch with a light-coloured keystone. The cross-vaulted ceiling of the compartment is
Category

Early 19th Century Austrian Biedermeier Antique Keystone

Materials

Walnut

Howard 14Kt. Solid White Gold Art Deco Pocket Watch with Kiln Fired Enamel Dial
By Howard
Located in Long Beach, CA
Company was acquired by the Keystone Watch Case Company. Keystone continued to produce Howard watches
Category

1920s Swiss Art Deco Antique Keystone

Materials

14k Gold

Magnolia Blossom
By Imogen Cunningham
Located in New York, NY
keystone of modernist photography. In the 1920s, Cunningham was living in Oakland and was largely confined
Category

1920s Antique Keystone

Materials

Silver Gelatin

Two Callas
By Imogen Cunningham
Located in New York, NY
keystone of modernist photography. In the 1920s, Cunningham was living in Oakland and was largely confined
Category

1920s Antique Keystone

Materials

Silver Gelatin

Antique 18th-Century Georgian Burr Yew Tea Caddy—Elegant, natural wooden box
Located in Saint Helena, CA
, or the keystone of your collection. Your tea caddy might complement a traditional interior or
Category

Late 18th Century English George III Antique Keystone

Materials

Yew

Antique Victorian Carved Statuary Marble Arched Chimneypiece
Located in Ware, GB
keystone. This very impressive piece can be purchased with its original cast iron insert with brass
Category

19th Century English Victorian Antique Keystone

Materials

Marble

Grand Portoro Marble & Serpentine Marble Fireplace Mantel
Located in London, GB
with crisplycarved Cornish serpentine dentils. Under this, the central keystone, ionic capitals and
Category

1860s British High Victorian Antique Keystone

Materials

Marble

An antique Victorian period fireplace made from Portoro Nero marble
Located in Tyrone, Northern Ireland
Portoro Nero marble The arched panels with raised and fielded panels are centred by a keystone, a
Category

Late 19th Century English Victorian Antique Keystone

Materials

Marble

An Important Irish George II Chimneypiece, in Black Kilkenny Fossil Marble
Located in London, GB
jambs are scroll consoles carved with acanthus motifs. The centre keystone has a scallop shell, a design
Category

Mid-18th Century Irish George II Antique Keystone

Materials

Marble

Georgian Fancy Double Hand Mirror in Mahogany and Holly England 1820s
Located in Hudson, NY
damaged, but not replace. It is handsomely made of expensive materials and has an interesting keystone
Category

1820s English Georgian Antique Keystone

Materials

Abalone, Mahogany, Holly

Antique French White Veined Carrara Marble Mantel
Located in Dallas, TX
adorning the central keystone, complemented by intricate scrollwork carvings that extend gracefully along
Category

18th Century Antique Keystone

Materials

Carrara Marble

Antique Black Marble Fireplace from the Early Victorian Period, circa 1850
Located in Tyrone, Northern Ireland
shaped mantelpiece with moulded edges, curves forward over the keystone. The recessed panelled keystone
Category

19th Century English Early Victorian Antique Keystone

Materials

Marble

French Fleur de Pêcher Marble Mantel
Located in Dallas, TX
a meticulously hand-carved floral motif adorning the keystone, while its elegant legs feature
Category

Mid-18th Century Antique Keystone

Materials

Marble

French Fleur de Pêcher Marble Mantel
French Fleur de Pêcher Marble Mantel
H 44 in W 58.25 in D 17 in
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Antique Keystone For Sale on 1stDibs

At 1stDibs, there are many versions of the ideal antique keystone for your home. Frequently made of stone, metal and limestone, every antique keystone was constructed with great care. You’ve searched high and low for the perfect antique keystone — we have versions that date back to the 18th Century alongside those produced as recently as the 20th Century are available. An antique keystone, designed in the Neoclassical, Victorian or Baroque style, is generally a popular piece of furniture. A well-made antique keystone has long been a part of the offerings for many furniture designers and manufacturers, but those produced by Keystone Manufacturing Company and Keystone Iron & Steel Works are consistently popular.

How Much is a Antique Keystone?

The average selling price for an antique keystone at 1stDibs is $1,600, while they’re typically $450 on the low end and $24,000 for the highest priced.