Leaded Slag Glass Bowl, C20th

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Location: United Kingdom
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Auction Start: 04/06/25 19:00:00 UTC
Auction Ending: 19/06/25 19:36:00 UTC
Time Remaining: 12d 0h 6m
LOT NUMBER 19
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LOT NUMBER 19

Leaded Slag Glass Bowl, C20th

‘Slag’ glass takes its name from a by product of steel production. When iron ore is smelted there is a residue of a glass-like, often glossy material that takes on different colours depending on the minerals and elements present in the iron. Termed ‘slag’ its visual marbling is reminiscent of slag glass which employs a wide variety of colours and tonal variation. The technique of producing it was developed in England in the late nineteenth century, one of the first patents being taken out by Sowerby in the 1870s, but the method soon spread to the United States culminating in its use by Tiffany for their famous series of lamps with their leaded glass shades. These are reproduced today, but later leaded slag glass pieces appear in a wide variety of forms including irregularly shaped bowls such as we have here. There is an Art Deco look to this piece but there are no obvious predecessors from the period so that we seem to have an inventive pastiche. Not a true ‘fake’ then but probably not as old as it might appear, even dating, perhaps, to the late twentieth century, but with considerable decorative appeal, nevertheless.
Size: Diam (max) 28cm, Ht (max) 9cm
Weight: 822gm
Date: C20th
Condition: Good condition, no issues
Estimate: £20 – 30

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