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Image ID: 338
Title:Molten glass poured onto thin sheet of glass for making gold leaf mosaic tesserae
Source:Raymond and Mildred Pitcairn Archives, Bryn Athyn, PA
Medium:35mm slide
Description: Once the gold leaf was encased in a thin sheet of glass, a large gather of glass would be layered overtop of it. “And after we had it [i.e. the thin sheet of glass] on there, it was slightly heated. And then I had my glassblower gather the glass on the blowpipe as you see here. And then, I would cut this off, over that piece of thin glass, and by rolling it out with my rolling pin into a little pancake, the gold leaf itself is 3/8 of an inch square. Then these had to be annealed...” (Gunther, Ariel. Transcript of Bryn Athyn glassmaking lecture. Raymond and Mildred Pitcairn Archives, Bryn Athyn, Pennsylvania).