How do you date a slag glass lamp?
The key to determining if a piece of glass is “true” slag or just a handsome example of pressed glass is to look for glass that is obviously and richly marbled rather than simply colored or streaked. Your caramel slag glass paneled lamp dates from the 1910s through the 1920s.
What is the difference between slag glass and stained glass?
Stained glass is either opaquely, uniformly colored, OR, the color is streaked with white. Slag glass looks like marble, uneven and swirly.
What is slag lamp?
Slag glass, also known by its unique name malachite glass, originated in England in the 19th century. Unlike any other type of glass, slag glass is not transparent. It was very popular as it is commonly used to create lampshades. Such slag lamps were frequently made in a cream color, allowing the light to pass through.
How can you tell real slag glass?
You can determine antique slag glass with a few steps:
- Look at the coloring for a marbling effect. It should not just be white streaks mixed in with another color, or one solid color.
- Examine the color. Antique slag items are usually brown, blue, green or purple.
- Look for names and marks of manufacturers.
Are slag glass lamps worth anything?
Slag glass, a less elaborate overlay. Well, as Tiffany lamps are becoming more and more valuable, these lamps are also going up in value. This lamp at auction today would bring around $1,000 to $1,500.
Is raw slag glass worth anything?
Slag glass antique items can run anywhere in value from a low of $50 to a high of $1,500.
Where do you find slag glass?
Slag glass is commonly found in purple, less common in blue and brown and green. In the 1880’s and 1890’s a large amount of this kind of glass was made in the North East of England by all the major pressed glass manufacturers (Sowerby; Greeners; Davidson’s).
How much is slag glass worth?
How Much Is Slag Glass Worth? Slag glass antique items can run anywhere in value from a low of $50 to a high of $1,500. Typically slag glass antiques will be vases, dishes, bowls and decorative figurines and picture frames.
What are slag glass lamps worth?
Are Dale Tiffany lamps worth anything?
Antique Tiffany lamps are sought-after today and the market remains competitive for investment-quality works. Tiffany lamps’ value can be anywhere from $4,000 to over $1 million. The most expensive Tiffany lamps sell for upwards of $1 million.
What is the rarest color of slag glass?
Sowerby’s slag glasswares, along with the similar pressed glass designs of contemporaneous English makers Davidson and Greener & Company, are still some of the most coveted today, particularly those that feature their unique brown malachite glass.