Big named glass companies jumped on the craze, and the most expensive slag glass lamps were produced by Tiffany, Roycroft or Steuben. Take full advantage of our site features by enabling JavaScript. A Victorian purple and white British pressed malachite / slag glass footed bowl. A Victorian purple and white pressed malachite / slag glass spill vase, with stork or heron bird design. For instance, some lamps always came with shades of a certain shape, whereas some other styles of lamps had two bases connected together. Some later manufacturers include Boyd, Imperial, and Westmoreland. A Victorian purple and white British pressed malachite / slag glass basket shaped spill vase. Domitz, Carrie and Gerald Domitz. Relevant Glass Articles. Prices go up significantly if a light is signed by a prominent manufacturer like Tiffany Studios or, to a lesser extent, Bradley & Hubbard. It was my grandmothers and is over 60 years old. Modern slag glass is still being made today in USA, and comes in a variety of colours. Darkpoison1367 5 months ago. A Victorian blue and white British pressed malachite / slag glass basket shaped bowl. Other times when tears or breaks occur These easily sell for thousands when in excellent condition, with Tiffany being the top of the line, of course. BRL 4,901.91, BRL 6,535.89 Made by Sowerby, pattern number 1223. Manufacturer unknown. Manufacturers experimented with different methods to achieve this malachite-like look. Other clues may include a delicate polychrome finish or gilt, which could indicate Depression era lamps. The color quality is another clue. Manufacturer unknown. Answer: The opaque bent panels of pressed glass with the creamy, golden swirls in your lamp are typically referred to as slag glass. Signed Rainaud Antique Slag Glass Lamp In Green And Gold. officialfuel 12 years ago. Turning off the personalized advertising setting wont stop you from seeing Etsy ads or impact Etsy's own personalization technologies, but it may make the ads you see less relevant or more repetitive. Gilded bronze. Other times when tears or breaks occur Manufacturer unknown. Shop Similar at WAYFAIR Up to 70% OFF Every Day at Wayfair A Victorian blue and white British pressed malachite / slag glass creamer jug. The value of slag glass is determined by the rarity of the item and the color. Lighting FixturesPettingell-Andrews Company, c. 1910, Gas and Electric LampsWelsbach Company, c. 1910. Made by Davidson, marked. Search Our Database. Original Price BRL 898.69 Made by Davidson, pattern number 234. Slag glass is a type of pressed glass that is known for its brilliant and vibrant colors. Manufacturers usually make slag glass by mixing this silicate slag with clear glass. A Victorian purple and white pressed malachite / slag glass posy vase or bowl. Here is a list of several authentic Handel marks. Thank you. Your lamp appears to have six panels and looks to be in very good condition. A name on the button identifies the maker of the vital lamp burner. between these sections are easily repaired and can retain the same Identify your Imperial Glass Marks. or Handel lamp that needs a little love. $71.65 shipping. between these sections are easily repaired and can retain the same On the interior of the break in most cases I create a bridge Outstanding glass and color. A Victorian purple and white British pressed malachite / slag glass tumbler. How Much are Slag Glass Lamps? My knowledge of lighting , materials and I think the one c stands for a casting company. maker mark on base as photographed, view larger image of . You can email the site owner to let them know you were blocked. Slag Glass prices range from 50 dollars to 1500 dollars. Copyright 2023 All Rights Reserved by Slag is the byproduct of steel production. Slag glass lamps are one of the most sought-after items made of slag glass. Manufacturer unknown for certain but very similar to Sowerby's pattern 1154. As you search for a lamp maker's mark, remember that it may be covered up by dust or dirt, so have a cleaning cloth and gentle cleaning solution handy. In your brief description you failed to mention condition or the presence or absence of any marks or numbers on the base of the lamp. 2002-2023 LoveToKnow Media. As the 1930s ended, Wright was buying glass from Cambridge, Fenton, Morgantown, and Westmoreland. This leads to marbling in the colors of the glass. 205 - Grouping of Glass Flowers Leaves Slag Grouping of Glass Flowers and Leaves, some appear to be Slag glass. According to Norman Webber, some companies referred to slagware as end of the day wear because glassmakers collected slag from the surface of iron right before they poured it at the end of the day. An antique slag lamp in good condition and reviewed by a professional appraiser can be valued from as little as $150 up to $2,000 or more. Original Price BRL 2,668.79 This illustrated guide provides marks found on both antique and contemporary collectible glass and includes dating information if known. Atterbury & Company, Challinor Taylor & Company, and H. Northwood Glass Company are some well-known manufacturers from the United States. In more recent years it was made by Imperial Glass, by Westmoreland Glass, by Akro Agate, and several other companies. In most cases existing metal part and, Slag glass lamps for sale REVERSE painted. I can best help you after you email picturesTo complete your quote for restoration if you include the following.1. . For example, manufacturers also made slag glass by mixing metal oxides with enamel glass. Louis XV style ceiling lamp. Modern day slag glass manufacturers in the U.S. include Fenton, Mosser, Summit and Boyd Glass. They are a great way to add color to any room. Cavo is the author of Love Immortal: Antique Photographs and Stories of Dogs and Their People. Atlanta, Georgia 30328 | 877.481.5750, Great Discoveries: Antique Pharmacy Items Found Amid Renovation, Great Discoveries: Antique Bottle, Message Found Beneath Floor in Scotland. This type of glass was used to make all types of glassware, including panels for lamp shades. If the item does not have any names or marks, the piece likely is a fake. Founts, chimneys and shades may have been made by others. The L. G. Wright Glass Company. A Victorian purple and white British pressed malachite / slag glass vase. White metal with filigree work was Ruby Red LLC is compensated for referring traffic and business to these companies. She is also a journalist and marketing content creator who enjoys cooking and eating, both helpful hobbies for a gardener. Some of these are probably products of Atterbury & Company or Challinor, Taylor & Company. It is hard to keep fragile glass intact for decades. One of the first places to look for a date stamp or the maker's hallmark begins with an examination of the base of the lamp. Dirk Van Erp Studio Van Erp's earliest lamps are signed near the center of the underside of the lamp, with the windmill logo Edward Miller and Company. Plus Return Shipping Tiffany stained glass lamp repairs and restoration for antique slag glass lighting. interior. Production of slag glass originated in late-19th-century England, where glass manufacturers are thought to have added slag from iron-smelting works to molten glass to create a range of effectsfrom tortoiseshell to marbling. Sale Price BRL 2,401.91 Maybe inherited a Tiffany stained glass lamp L. G. Wright Glass reproduced many types of late 19th and early 20th century glass. Table lamps with missing white metal Remember, the most common way to make slag glass was by skimming silicate material from the top of molten iron. A Victorian purple and white British pressed malachite / slag glass pin dish. Grandmother's old lamp not "true" slag glass but still catches eye of appraiser to the tune of $300-$400. Slag glass was originally created in the United Kingdom in the 1890s by adding this slag substance during the glass-making process. strength as when manufactured. Once you find those marks, research the company to see if they are an authentic brand. $435.00. Some of the technologies we use are necessary for critical functions like security and site integrity, account authentication, security and privacy preferences, internal site usage and maintenance data, and to make the site work correctly for browsing and transactions. If the bottom of the base is covered with felt, lift the felt gently to look for signs of the lamp's maker. Contact Us. It is unlikely that any American glass factory produced Mary Gregory -style glass before Westmoreland Glass Company's 1957 line. How to Look at a House reports that polarized outlets and plugs were introduced in the 1880s, but they were not popular at first and did not become standard until the mid-20th century. Antique Lamp Co. provides an antique lamp identification chart that illustrates many basic lamp styles. The older piece, the greater value it has. Brown malachite slag glass pieces are the rarest and most coveted colors of slag glass. Imperial Trademark for E. Ward Russell 1970's : Imperial Trademark with Lenox L added 1973-81 Mostly on slag glass: Imperial Trademark A and L added 1981-82 : Imperial 'New Imperial' Trademark 1983 . The company mass-marketed lamps, tableware, and tumblers. To complete your quote for restoration if you include the following. Companies continued to make slag glass items well into the mid-20th century. She added custard glass to the company's color line in 1969 and iridescent (carnival . True slag glass is richly marbleized, deeply colored glass rather than glass that is colored with pale swirls or streaks, which is also known as malachite, marbled and variegated glass. barn or at an estate sale. This will ensure that the money you are spending is worth it. Explore over 425 Million sold for prices with item details and images. Purple is the most common slag glass color. See the patent table below for details. A Victorian purple and white British pressed malachite / slag glass half pint tumbler. When molds were acquired from defunct glass companies, L. G. Wright did not always remove the former makers marks. Measurements: 105 x 80 x 80 cm. The first new molds date from 1937. mold. Those partners may have their own information theyve collected about you. Manufacturer unknown. Metal and glass,unknown maker. cheaper to use. Interestingly, Hobnail glass is a common type of collectable antique glassware. It formed at a very low temperature which made it faster and Victorian bronze slag glass lamp indistinct mark H: 22 in. Check out Appraiser's's ANTIQUES ROADSHOW appraisal of this Early 20th-Century Bradley & Hubbard Lamp from Seattle, Hour 3! (7) $350.00. Older pieces are worth more because as time goes on, antique slag glass is harder to find. Outstanding full floral Duffner and Kimberly dogwood lamp. The dimensions Length x Height.3. Akron Diamond 120 Gas Table Lamp. This is a big part of why slag glass is so valued today. Some glass makers use punty rods to hold a glass piece during the crafting process. To enable personalized advertising (like interest-based ads), we may share your data with our marketing and advertising partners using cookies and other technologies. For many glass collectors, finding a beautiful treasure with antique glass markings is a special treat. Made by Sowerby, pattern number 1259, marked. However, the popularity waned at times. Fenton uses snap rings, so most of their pieces will not have a pontil mark. Today's retail prices for slag glass table lamps range from about $500 to $1,500, depending on condition, style, size and purchase venue. All rights reserved. Peachblow was produced between 1955 and 1963. Also, add in any background information you have, and add in a question so we know what you want from . barn or at an estate sale. Depending on the Slag glass comes in many colors such as chocolate or caramel, purple, blue, pink, and red. Made by Davidson, marked. known as a maker of high-quality products. Manufacturer unknown, possibly French factory Sars-Poteries. One item where slag glass was used often was in the creation of antique oil lamps, chandeliers and lampshades, particularly during the Art Deco and Art Nouveau periods during the late 19th and early 20th century. and skills can help you. it will be like a hair line. A Victorian purple and white British pressed malachite / slag glass bowl. It is a rather nice example of lamps of this type and I would place a value of $300 to $400. Have a magnifying glass handy; often the marks are very small. A Victorian purple and white British pressed malachite / slag glass spill vase. Tiffany, Roycroft or Steuben lampshades made with slag glass can command prices of up to $20,000. 6 Vintage Action Figures That Are Valuable Today. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. The action you just performed triggered the security solution. It was only made in two colours, blue and lemon yellow, each with a white edge. Pictures of both the inside and outside of the lamp.2. Manufacturer unknown. Finally, a Bradley & Hubbard slag glass lamp sold for $584, typical for that style and age of light. The covered tureen is 7.5 inches tall x 6.5 inches wide. Some well-known slag glass manufacturers include Sowerby, Davidson, and Greeners. Markings for Bigelow and Kinnard, Kramer, Steuben, Bradley and Hubbard, Stickley, Gorham, Wilkinson and Jefferson also have high value. A glass decoration plant opened in early 1968. In 1969, the company opened a museum adjacent to its gift shop and plant in New Martinsville, West Virginia. 2 days Left FINE ANTIQUE CHINESE MARKED BUTTERFLY VASE MARK AND PERIOD $850. known for its ability to retain detail when removed from its master Atterbury & Company, Challinor Taylor & Company, and H. Northwood Glass Company are some well-known manufacturers from the United States. Early 1900 slag glass hanging lamp. Work with a qualified appraiser to help you identify the manufacturer and type of slag glass antiques you have, including antique glass insulators, to determine the true market value. Marietta, OH: Glass Press, 1997. We also have an in-depth encyclopaedia guide on many types of glassware, with lots of information and pictures. Newer slag glass has been produced by several companies in the latter half of the 20th century. Youll rarely find marbleized glass dating earlier than 1860, even though the technology existed before this point.2. interior. $463.00. Dirk Van Erp Studio. Manufacturer unknown. Fenton Glass Made for Other Companies 1907-1980, Identification & Value Guide Weil Ceramics, Abels Wasserburg, Edward Paul, L. G. Wright, Rubel. February 21 . As with most other small regional lamp makers, the Chicago Mosaic Lamp Company saw the phenomenal success of Tiffany Studios' patented copper foiled . Real slag will always have a creamy marble effect. For todays collectors, slag glass is a greatly sought-after item that can go for a lot of money. 91 - Red Slag Glass Lamp ornate metal and eight panel red shade, bottom trim one one section is loose as seen, 23 inches tall, base is . Made by Sowerby, pattern number 1148. . A Victorian purple and white British pressed malachite / slag glass half pint tumbler. . Mychelle is a writer and web designer who is passionate about a wide variety of topics and enjoys sharing her knowledge with readers. From Art Deco to 1970s Contemporary, we tried to list as many lamp manufacturers as we could find. During the 1920's designs changed to reflect the new Art Deco trends. White metal with filigree work was will bring to your unique project over 40 years experience, knowledge Click to reveal Learning how to identify and value this glass can help if you are looking to collect or just learn more about this interesting glassware. Lawrence Gale Si Wright (1904to 1969) began buying and selling glass seconds in 1937. Assuming you have a table lamp with a large painted glass shade, then your shade should measure as 14, 15, 15.5, 16, or 18 inches. you just found the slag glass table lamp of the century in the back In 1938, he contracted with Fenton to manufacture a reproduction Hobnail barber bottle in amber and vaseline. (25% off), Sale Price BRL 435.68 Slag glass antique lamps sell between $200 and $2,000, and most of the value is in the light itself. BRL 2,401.91, BRL 2,668.79 Manufacturer unknown. 5.Your shipping address for return shipping quote. The most expensive Tiffany lamps sell for upwards of $1 million. It wasn't until the early 1960s that outlets were converted to both grounding (3-prong) and polarized. There are some numbered lamps that aren't on our site. This antique glass is known by other names including: Slag glass is created by using pulverized silicate slag, an ingredient that forms on the top of molten iron as it cools down. Values. A Victorian purple and white British pressed malachite / slag glass spill vase. Opal an opaque white glass the first Vitro-Porcelain colour produced in 1876 followed by: Turquoise a pale blue glass in the same year. Also, add in any background information you have, and add in a question so we know what you want from us . A Victorian blue and white British pressed malachite / slag glass creamer / jug. Slag glass is named after silicate slag, a colorful material that is a byproduct of molten steel. Popular antique lamp manufacturers you should look out for are: Handel Company. A Victorian blue and white British pressed malachite / slag glass half pint tumbler. Slag glass gets its name from slag. In one case, L. G. Wright did add another stroke to the Northwood N making it appear as a wobbly W. Label, oval with EARLY AMERICAN / L. G. WRIGHT in border, house/factory in center. Made by Sowerby, pattern number 1288, marked. My old world craftsmanship These lamps and lampshades were not only prized for their beauty but also the colored and marbled effect of the lights on the walls of a home. How to Look at a House: When Did the Code First Require Electric Receptacle Outlets to be Polarized? A Victorian purple and white British pressed malachite / slag glass bowl. The lamps and shades often included intricate bronze and brass metalwork featuring scrolling floral, foliate, relief and decorative patterns. Serious antique glass collectors will be familiar with "slag glass" which became popular in the late 1800s and is still made today. Maybe inherited a Tiffany stained glass lamp My old world craftsmanship It's also possible that the shade of your lamp was replaced somewhere along the line, so the lamp base and shade may not be an original pair. parts presents an extensive restoration process were removing an (20% off), Sale Price BRL 718.95 This list is limited to only a few results.Many more items are available to our members through our Price Guides! view larger image of . A glass decoration plant opened in early 1968. (Source). Other times when tears or breaks occur Working for churches, architectural lighting companies, A Victorian blue and white pressed malachite / slag glass spill vase. known for its ability to retain detail when removed from its master A pair of Victorian purple and white British pressed malachite / slag glass spill vases. Love Immortal: Antique Photographs and Stories of Dogs and Their People. Tiffany stained glass lamp repairs and restoration, Slag glass lamp frame repairs | Brass - Zinc - White Metal - Pot Metal - Copper - Bronze, Click HERE to view my many workbench articles, Whether A Victorian purple and white pressed malachite / slag glass spill vase. Despite its rarity, you can still find slag glass items in modern homes. In 1914 the company began to make blown ware which it called "Heisey's American Crystal.". The number of broken pieces.4. In 1891, the factory was taken over by Thomas Davidson, George Davidson's son. view larger image of . Note whether the cord and plug look old. For more information on Malachite / Slag glass, check out the following resources: www.victorianpressedglass.com - Large gallery of Sowerby and other Victorian pressed glass, with catalogue scans. Sowerby also created several other color formulas including Giallo (yellow), Pomona (green), and Sorbini (blue). When iron-ore is smelting during steel production, the remaining residue is a glass-like, glossy material. A Victorian purple and white British pressed malachite / slag glass bowl.