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Is there a name for that sort of rainbow/oily look you get on some old glass?

EB

Is there a name for that sort of rainbow/oily look you get on some old glass?

by 6 years ago
1
DG
6 years ago
Hello Elspeth, I think it could be Benicia iridescence or patina - not 100% sure though, it would be great to hear from a glass collecting expert! Hopefully we'll hear from one soon. Daphne

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