The hand-crafted kerosene and early electric lighting fixtures created at Tiffany Studios now rank among the most coveted decorative objects in the world. Tiffany designs of any kind are emblematic of taste and craftsmanship, and Tiffany glass refers to far more than stained-glass windows and decorative glass objects. The iconic multimedia manufactory’s offerings include stained-glass floor lamps, chandeliers and enameled metal vases. The most recognizable and prized of its works are antique Tiffany Studios table lamps.
The name Tiffany generally prompts thoughts of two things: splendid gifts in robin’s-egg blue boxes and exquisite stained glass. In 1837, Charles Lewis Tiffany co-founded the former — Tiffany & Co., one of America’s most prominent purveyors of luxury goods — while his son, Louis Comfort Tiffany, is responsible for exemplars of the latter.
Louis was undoubtedly the most influential and accomplished American decorative artist in the decades that spanned the late 19th and early 20th centuries. Rather than join the family business, he studied painting with several teachers, notably the scenic painter Samuel Colman, while spending long periods touring Europe and North Africa. Though he painted his entire career, visits to continental churches sparked a passionate interest in stained glass. Tiffany began experimenting with the material and in 1875 opened a glass factory-cum-laboratory in Corona, Queens — the core of what eventually became Tiffany Studios.
In his glass designs, Tiffany embraced the emerging Art Nouveau movement and its sinuous, naturalistic forms and motifs. By 1902, along with glass, Tiffany was designing stained-glass lamps and chandeliers as well as enameled metal vases, boxes and bowls, and items such as desk sets and candlesticks. Today such pieces epitomize the rich aesthetics of their era.
The lion’s share of credit for Tiffany Studios table lamps and other fixtures has gone to Louis. However, it was actually Clara Driscoll (1861–1944), an Ohio native and head of the Women’s Glass Cutting Department for 17 years, who was the genius behind the Tiffany lamps that are most avidly sought by today’s collectors. A permanent gallery of Tiffany lamps at the New-York Historical Society celebrates the anonymous women behind the desirable fixtures.
Find antique Tiffany Studios lamps, decorative glass objects and other works on 1stDibs.
Tiffany Studios Zodiac Pattern Gilt Bronze Cigar Humidor or Table Box No. 1655
By Tiffany Studios
Located in Philadelphia, PA
A fine antique Tiffany Studios box. In gilt Bronze. In the Zodiac pattern. Model no. 1655. This table box is often referred to as a cigar humidor. It also functions beautifully a...
Bronze
Gilt Bronze Tiffany "Puddlestick" Candlestick New York 20th Century
By Tiffany Studios
Located in San Juan Capistrano, CA
Tiffany Studios gilt bronze "Puddlestick" candlestick. Signed with stamped signature "Tiffany Studios New York 1213" to bottom.
Bronze
Tiffany Studios Twelve Light Lily Lamp, A marriage of Antique & Contemporary Ele
By Tiffany Studios
Located in Bronx, NY
A beautiful combination of Antique & Contemporary Art Nouveau style lighting
Bronze
Antique Tiffany Studios Jeweled Favrile Glass Candle Lamp, Patinated Bronze Base
By Tiffany Studios
Located in Tarry Town, NY
A rare and finely executed early 20th century candle lamp produced by the renowned Tiffany Studios, United States, circa 1906. This example represents an important period in Tiffany ...
Bronze
Tiffany Studios New York Pair of "Three-light Lily" Desk lamps
By Tiffany Studios
Located in New York, NY
Each Tiffany Studios New York Three-Light Lily table lamp features three golden Favrile glass shades in the form of lily blossoms, suspended in a graceful downward arc above a patina...
Bronze
20th Century Tiffany Studios Desk Lamp , Gilt Brass Bell-Shaped Shade, Model 424
By Tiffany Studios
Located in Tarry Town, NY
A rare and finely executed early 20th century desk lamp produced by Tiffany Studios in the United States, circa 1910. This lamp represents a significant example of Tiffany Studios’ m...
Brass, Bronze
Tiffany Studios Tall Candlestick with "Pulled Feather" Shade "Circa 1910"
By Tiffany Studios
Located in Tarry Town, NY
An exquisite and rare pair of tall candlestick lamps by the renowned Tiffany Studios, New York, crafted circa 1910. These striking examples of early 20th-century American decorative ...
Bronze
Exquisite Tiffany Studios Bronze & Leaded Glass "Feather" Table Lamp, Circa 1915
By Tiffany Studios
Located in Tarry Town, NY
This superb Tiffany Studios table lamp, dating to circa 1915, represents the height of American decorative artistry in the early twentieth century. With its refined conical leaded gl...
Cast Stone, Bronze
Tiffany Studios New York Candlestick
By Tiffany Studios
Located in New York, NY
Opulent in hue but refined in composition, this candlestick by Tiffany Studios New York features a golden iridescent Favrile glass shade resting upon an elegant jeweled patinated bro...
Bronze
Tiffany Studios New York Bronze Doré Counterbalance Desk Lamp
By Tiffany Studios
Located in South Bend, IN
A gorgeous Arts & Crafts or Art Deco period bronze counterbalance desk lamp or table lamp By Tiffany Studios (signed to the underside of base) New York, USA, Early 20th Century Gi...
Bronze
$368,000Sale Price|20% Off
104" Historic Tiffany Window "Crusader", a Warrior Knight, after Mantegna c1890
By Tiffany Studios
Located in Big Flats, NY
Magnificent historic Tiffany Studios framed window, "Crusader", a Warrior Knight, after the 1460 work by Italian Renaissance painter Andrea Mantegna (1431-1506). Incorporating a harm...
Stained Glass
Tiffany Studios New York Bronze and Abalone Blotter Ends With Leather
By Tiffany Studios
Located in South Bend, IN
A gorgeous pair of Art Deco or Arts & Crafts period bronze blotter ends with inset abalone, together with a custom green leather desk blotter. By Tiffany Studios (signed to the unde...
Bronze
Tiffany Studios New York "Seven Light Lily" Table Lamp
By Tiffany Studios
Located in New York, NY
This Tiffany Studios New York glass and bronze "Seven Light Lily" table lamp, features seven golden iridescent Favrile glass "Lily" shades on individual bronze stems extending upward...
Bronze
Rare L.C. Tiffany Favrile Glass Vase with Floral Decoration, circa 1900
By Tiffany Studios, Louis Comfort Tiffany
Located in Palm Desert, CA
A luminous and exceptionally fine example of Louis Comfort Tiffany’s masterful glasswork, this Favrile glass vase dates to circa 1900. The vase features a graceful, elongated baluste...
Blown Glass
Tiffany Studios Pulled Feather Trumpet Vase With Gilt Bronze Base
By Tiffany Studios
Located in Dallas, TX
Tiffany Studios Pulled-feather vase with mount A beautiful Pulled feather favrile glass trumpet with my favorite pink orange highlights. One of Tiffany’s iconic designs. USA, New Yor...
Bronze
Tiffany Studios New York Zodiac Bronze Stamp Box
By Tiffany Studios
Located in South Bend, IN
A stunning antique bronze stamp box featuring Zodiac designs By Tiffany Studios (signed to the underside) New York, USA, Early 20th Century Measures: 3...
Bronze
Tiffany Studios New York Aladdin Bronze and Favrile Glass Floor Lamp
By Tiffany Studios
Located in South Bend, IN
An outstanding Arts & Crafts or Art Deco period "Aladdin" bronze floor lamp with favrile glass shade (unsigned) By Tiffany Studios (base signed to the underside) New York, USA, Ea...
Bronze
Tiffany Studios Favrile Ribbed Iridescent Art glass Footed Open Salt
By Tiffany Studios
Located in BROOKLYN, NY
Louis Comfort Tiffany,Golden iridescent, cauldron form with a ribbed base with polished pontil mark. Signed L.C.T on bottom rim. Tiffany Studios. 1907. 1.5" H. Price per item.
Glass
Tiffany Studios “Leaf and Vine” Favrile Glass Large Bowl Centerpiece with Frog
By Tiffany Studios
Located in Tarry Town, NY
An important early 20th century Favrile glass flower large bowl with matching frog Centerpiece by Tiffany Studios, produced in the United States circa 1926. Known as the “Leaf and Vine” pattern, this elegant floral bowl exemplifies Tiffany Studios’ late production of functional yet highly decorative Favrile glass tableware and interior objects. The bowl is hand-blown in Favrile glass, a material patented by Louis Comfort Tiffany in 1894 and celebrated for its inherent iridescence achieved through the incorporation of metallic oxides into the molten glass. The surface displays subtle tonal variations and depth characteristic of authentic Favrile glass. The accompanying glass frog is designed to support floral arrangements while remaining visually integrated with the bowl’s organic form. This example is fully signed, with the glass insert etched “1790 453N L.C. Tiffany – Inc. Favrile” and the underside of the dish etched “1790 – 9182L L.C. Tiffany – Favrile,” confirming the model number, maker, and authenticity. The use of “L.C. Tiffany Inc.” is consistent with Tiffany Studios production from the mid-1920s. The bowl measures approximately 4¼ inches high by 12¼ inches in diameter (11 × 31 cm). It is in good condition, with minor wear consistent with age and use, and shows no chips, cracks, or repairs. A highly collectible and functional example of Tiffany Studios Favrile glass, this “Leaf and Vine” flower bowl represents the enduring appeal of Tiffany’s nature...
Art Glass
"'Egyptian Revival Candle Lamp", Art Deco Bronze/Glass Lamp, Tiffany Studios
By Tiffany Studios
Located in Philadelphia, PA
Although Louis Comfort Tiffany is world-renowned for his works in glass and bronze influenced by the Art Nouveau style -- including his stained glass lamps and windows, and his many ...
Bronze
Tiffany Studios New York Bronze Doré Desk Box or Humidor
By Tiffany Studios
Located in South Bend, IN
A gorgeous antique Arts & Crafts or Art Deco period gilt bronze desk box or humidor By Tiffany Studios (signed to the underside) New York, USA, Early 20th Century Measures: 6"W x ...
Bronze
Louis Comfort Tiffany Furnaces Bronze Art Deco Floor Lamp With Wire Mesh Shade
By Tiffany Studios, Louis Comfort Tiffany
Located in South Bend, IN
A rare and outstanding Art Deco or Art Nouveau period bronze floor lamp By Louis Comfort Tiffany Furnaces, Inc. New York, USA, 1920s Silver plated bronze stand, with stag figured ...
Bronze
Tiffany Studios New York Graduate Pattern Bronze Doré Bookends, Circa 1910
By Tiffany Studios
Located in South Bend, IN
A gorgeous pair of Arts & Crafts or Art Deco period "Graduate" pattern gilt bronze bookends By Tiffany Studios (signed to the underside) New York, USA, Circa 1910 Each measures: 5...
Bronze
Tiffany Studios New York "Linenfold" Table Lamp
By Tiffany Studios
Located in New York, NY
A Tiffany Studios New York Favrile glass and patinated bronze "Linenfold" table lamp. The shade is comprised of twelve amber Favrile glass panels and sits atop a "Stick" bronze base ...
Bronze
Tiffany Studios New York Chinese Pattern Large Bronze Inkwell, Circa 1910
By Tiffany Studios
Located in South Bend, IN
A gorgeous Arts & Crafts period "Chinese" pattern gilt bronze inkwell By Tiffany Studios (signed to the underside) New York, USA, Early 20th Century Measures: 5"W x 5"D x 3.13"H. ...
Bronze
Tiffany Studios Acorn Table Lamp
By Tiffany Studios
Located in Bronx, NY
This vintage genuine Tiffany Studios table lamp is circa the early 1900’s. Featured is a beautiful tranditionally designed shade with a geometric pattern accented by a acorn motif. Shade displays a wonderful veriety of green colors that range from dark to light tones creating a shade with stylish appearance that could enhance any desk. The acorn motif prominetly presents itself positioned in the bend that sorounds the shade. The shade itself nests comfortably atop a patinated bronze art nouveau lamp base...
Art Glass
Tiffany Studios New York Bronze Harp Desk Lamp With Favrile Glass Shade
By Tiffany Studios
Located in South Bend, IN
A rare and exceptional antique Arts & Crafts or Art Deco period bronze harp desk lamp or table lamp By Tiffany Studios (signed to the underside of base) New York, USA, Early 20th C...
Bronze
Tiffany Studios New York Art Deco Sculpted Bronze Floor Standing Ash Tray
By Tiffany Studios
Located in South Bend, IN
A gorgeous Art Deco period sculpted bronze ash stand By Tiffany Studios New York, USA, Early 20th Century Measures: 9"W x 8.5"D x 28"H; Extends up to 40.75"H. Good origin...
Bronze
Tiffany Studios Dogwood Floral Stained Glass Table Lamp
By Tiffany Studios
Located in Dallas, TX
Tiffany Studios Art Glass and Bronze Dogwood Table Lamp Dogwood Band table lamp New York, USA, c. 1910 Leaded glass, Patinated bronze Height: 21.5 Inches X 16 Inches Diameter (55 × 4...
Bronze
Tiffany Studios New York Zodiac Pattern Bronze Doré Box
By Tiffany Studios
Located in South Bend, IN
A gorgeous antique Arts & Crafts or Art Deco period gilt bronze "Zodiac" pattern desk box, decorative box, or jewelry box By Tiffany Studios (signed to the underside) New York, USA...
Bronze
Tiffany Studios New York Zodiac Patinated Bronze Box, Circa 1910
By Tiffany Studios
Located in South Bend, IN
A stunning antique Arts & Crafts period bronze desk box, jewelry box, or decorative box featuring Zodiac designs By Tiffany Studios (signed to the underside) New York, USA, Early 2...
Bronze
Tiffany Studios Bronze Harp Floor Lamp With Damascene Favrile Glass Shade
By Louis Comfort Tiffany, Tiffany Studios
Located in South Bend, IN
An outstanding Arts & Crafts or Art Deco period bronze harp floor lamp By Tiffany Studios (lamp base signed "Tiffany Studios New York" to the underside; shade signed "L.C.T.") New ...
Bronze
Tiffany Studios New York "Nautilus" Table Lamp With "Mermaid" Base
By Tiffany Studios
Located in New York, NY
In Tiffany Studios' exquisite "Nautilus" table lamp, a cast bronze mermaid emerges from a churning sea, holding a lighted nautilus shell aloft. This lamp, one of the few patented by Tiffany Studios, received its patent on May 2, 1899, and was featured in Siegfried Bing’s landmark Louis Comfort Tiffany exhibition at the Grafton Galleries. The mermaid base was sculpted by Louis Gudebrod, the only lamp base artist credited by Tiffany Studios. The nautilus shell motif, prominent in European decorative arts of the 17th century, originated from Dutch ships that transported the shells from the South China Sea, some 15,000 miles away. These shells showcased the Dutch Republic's global mercantile strength, and Dutch painters often featured them in still-life works—many of which are now in the Metropolitan Museum of Art’s collection. Inspired by this artistic tradition, Tiffany transformed the iridescent shell into a table lamp. The shell softened and modulated the light, similar to the effect of Tiffany's Favrile glass shades, creating a warm glow reminiscent of the gas lighting familiar to the era. Item #: L-21744 Artist: Tiffany Studios New York Country: United States Circa: 1899 Dimensions: 17.5" height, 4.75" width, 8" deep. Materials: Nautilus shell, Bronze Base Signed: GUDEBROD and Tiffany Studios New York Literature: Alastair Duncan, "Tiffany Lamps and Metalware", Woodbridge, Suffolk, 2007, pg. 86, fig. 336. Macklowe Gallery Curator's Notes: The shape of the exotic nautilus, found in the western Pacific, has long been the muse of architects, artists, and designers. One only has to look to Grecian columns, to spiral staircases, or to the nautilus cups of the sixteenth century for examples. Louis Comfort Tiffany's glass interpretation of the "Nautilus" shell design was first displayed at the Paris Exposition Universelle 1900, where he was displaying the best lamps that he had to offer. By bringing this intricate and difficult-to-make model to the World's Fair, Tiffany was showing the international design world just how well-made and beautiful a Tiffany Studios New York lamp...
Bronze
Tiffany Studios Reactive Paperweight Glass Vase
By Tiffany Studios
Located in Dallas, TX
Tiffany studios Reactive Vase. Cased with splashes of orange, yellow, pink and green on an opalescent glass background. Favrile is the broad name for Tiffany’s handmade iridescent gl...
Art Glass
$2,800
Tiffany Studios
By Tiffany Studios
Located in Dallas, TX
Tiffany Studios Vase with Cypriote foot A rare marriage of dreamy Favrile and lunar cypriote designs forming a must have for your cabinet’s collection of treasures. USA, New York c. ...
Art Glass
Tiffany Studios New York "Geometric" Plafonnier
By Tiffany Studios
Located in New York, NY
This Tiffany Studios New York 'Geometric' plafonnier features a captivating shade composed of geometric glass tiles that transition from warm amber to soft white, culminating in a pa...
Bronze
Tiffany Studios Trumpet Vase With Enameled Gilt Bronze Base
By Tiffany Studios
Located in Dallas, TX
Tiffany Studios Trumpet Vase With Enameled Bronze Base A large, magnificent and rare vase with enameling that is to die for. A great statement piece for Tiffany Studios showcasing bo...
Bronze, Enamel
Documented Tiffany Studios #425 Bronze Dore "Bell" Floor Lamp W/Favrile Shade
By Tiffany Studios
Located in New York, NY
Illuminate your space with the timeless elegance of the Signed Tiffany Studios #425 Gilt Bronze Dore "Bell" Floor Lamp, featuring a stunning Favrile Damascene shade. This exquisite American piece, circa 1910, embodies the superior craftsmanship and artistic design associated with Tiffany Studios. The true highlight is the Favrile Damascene shade, renowned for its iridescent glass that shimmers with glorious hues, transforming the light into a captivating display of color and pattern. Louis Comfort...
Bronze
Tiffany Studios Dragonfly Diachronic Confetti Table Lamp
By Tiffany Studios
Located in Dallas, TX
Tiffany Studios Dragonfly Table Lamp A gorgeous Tiffany Studios diachronic light blue to green Dragonfly table lamp with confetti glass wings...
Bronze
Tiffany Studios Daffodil Table Lamp
By Tiffany Studios
Located in Dallas, TX
Tiffany Studios Daffodil Table Lamp All I can say is these are the yummiest and most desirable blues in the Tiffany Studios candy store. Circa...
Bronze
Tiffany Studios New York Zodiac Bronze Doré Pen Tray
By Tiffany Studios
Located in South Bend, IN
A gorgeous antique Art Deco period gilt bronze pen tray featuring Zodiac designs By Tiffany Studios (signed to the underside) New York, USA, Early 20th Century Measures: 10"W x 3....
Bronze
Tiffany Studios New York Bronze Doré Plate or Shallow Bowl
By Tiffany Studios
Located in South Bend, IN
A gorgeous Arts & Crafts or Art Deco period gilt bronze plate or shallow bowl By Tiffany Studios (signed to the underside) New York, USA, Early 20th Century Measures: 9"W x 9"D x ...
Bronze
Tiffany Studios Style Art Nouveau Bronze Counterbalance Desk Lamp
By Tiffany Studios
Located in South Bend, IN
A gorgeous Art Nouveau or Arts & Crafts desk lamp or table lamp In the manner of Tiffany Studios USA, Circa Mid-20th Century Bronze base, with gorgeous Louis Comfort Tiffany style...
Bronze
Tiffany Studios New York Zodiac Bronze Harp Desk Lamp
By Tiffany Studios
Located in South Bend, IN
A rare and exceptional Arts & Crafts or Art Deco period bronze harp desk lamp or table lamp By Tiffany Studios (signed to the underside of base) New York, USA, Early 20th Century ...
Bronze
Tiffany Studios Large Grapevine Pattern Picture Frame, ca. 1905
By Tiffany Studios
Located in Petaluma, CA
This Large and beautiful picture frame is the the work of Tiffany Studios. This is the grapevine pattern with a gilt finish- The top border of the frame monogrammed (A.S.B.). Rich Ti...
Bronze
20th Century Tiffany Studios Gold Favrile Blown Glass Flower-Form Footed Vase
By Tiffany Studios
Located in Tarry Town, NY
Tiffany Studios gold Favrile blown glass flower-form footed vase, dating to circa 1910–1915. The vase is formed with a gracefully ribbed trumpet-shaped body that flares gently at the...
Glass, Art Glass
Tiffany Studios Bronze Harp Floor Lamp with Green Damascene Favrile Glass Shade
By Tiffany Studios
Located in Tarry Town, NY
An exceptional and rare early 20th-century bronze harp floor lamp by the iconic Tiffany Studios, New York, featuring a stunning Favrile glass Damascene shade and exquisite craftsmans...
Bronze
$21,000 / item
Tiffany Studios Pomegranate Table Lamp
By Tiffany Studios
Located in Dallas, TX
Tiffany Studios Pomegranate Leaded Glass and Patinated Bronze Table Lamp. A beautiful Tiffany Studios ensemble with a rare and early patinated bronze base with original Bryant socket...
Bronze
Tall Tiffany Studios Banded Dogwood Leaded Glass And Bronze Table Lamp
By Tiffany Studios
Located in Dallas, TX
Tiffany Studios Banded Dogwood Leaded Glass and Bronze Art Nouveau Table Lamp. The bronze base is rare and exquisite in this example and is a wonderful marriage to this perfect Bande...
Bronze
Tiffany Studios Poinsettia Table Lamp
By Louis Comfort Tiffany, Tiffany Studios
Located in Astoria, NY
Tiffany Studios Poinsettia Three Light Table Lamp, leaded glass shade on patinated bronze "Library Small # 363" base, marked "TIFFANY STUDIOS NEW YORK 1998" to shade and "TIFFANY STU...
Bronze
Tiffany Studios Apple Blossom Table lamp
By Tiffany Studios
Located in Dallas, TX
Tiffany Studios Apple Blossom Leaded Glass and Bronze Table Lamp, The patinated bronze base with with Acorn design in wonderful condition...
Bronze
Tiffany Studios New York Bronze Doré Harp Favrile Iridescent Art Glass Desk Lamp
By Tiffany Studios
Located in South Bend, IN
A gorgeous Arts & Crafts or Art Deco period bronze harp desk lamp or table lamp By Tiffany Studios New York, USA, Early 20th Century Gilt bronze base...
Bronze
Tall Tiffany Studios Geometric 20” Vine Border Table Lamp
By Tiffany Studios
Located in Dallas, TX
Tiffany Studios New York "Vine Border" Shade and Library Base Table Lamp In perfect original condition which is extremely rare for a 115 yr old lamp. The glass is diachronic and lig...
Bronze
Tiffany Studios Jeweled Feather Table Lamp.
By Tiffany Studios
Located in Dallas, TX
Tiffany Studios Jeweled Feather Table Lamp. New York, Circa 1910 Base signed TIFFANY STUDIOS NEW YORK 584, Height 22 Inches Shade signed TIFF...
Bronze
Louis Comfort Tiffany Favrile Iridescent Art Glass Cabinet Vase
By Louis Comfort Tiffany, Tiffany Studios
Located in South Bend, IN
A gorgeous Arts & Crafts or Art Nouveau period Favrile iridescent art glass cabinet vase By Louis Comfort Tiffany for Tiffany Studios (signed to the underside) USA, Circa 1910 Mea...
Art Glass
Tiffany Studios New York Graduate Pattern Bronze Letter Rack
By Tiffany Studios
Located in South Bend, IN
A gorgeous antique Arts & Crafts or Art Deco period bronze "Graduate" pattern desk letter holder rack with verdigris green patina By Tiffany Studios (signed to the underside) New Y...
Bronze
Tiffany Studios New York Gilt Bronze Three-Light Lily Table Lamp
By Tiffany Studios
Located in South Bend, IN
A gorgeous antique Arts & Crafts or Art Deco period gilt bronze three-light "Lily" desk lamp or table lamp By Tiffany Studios (signed to the underside) New York, USA, Early 20th Ce...
Bronze
Tiffany Studios Bronze And favrile Harp Table lamp
By Louis Comfort Tiffany, Tiffany Studios
Located in Dallas, TX
Tiffany Studios Bronze And Favrile Glass Harp Table Lamp. Circa 1910, period Art Nouveau Art Deco Patinated bronze and Iridescent favrile glass Height: 13....
Bronze
20th Century Tiffany Studios Bronze / Iridescent Favrile Glass Trumpet Vase
By Tiffany Studios
Located in Tarry Town, NY
This exceptional Tiffany Studios trumpet vase, dating from circa 1910-1915, represents the finest artistry of Louis Comfort Tiffany and the Tiffany Studios workshop in New York. Craf...
Bronze
Rare Tiffany Studios “Jade Ring” Table Lamp
By Tiffany Studios
Located in Dallas, TX
Rare Tiffany Studios Leaded Glass and Patinated Bronze Geometric Table Lamp, circa 1910. This is a rare one of a kind early Tiffany Studios larg...
Bronze