Topic: Webb cut wine glasses for show, presumably heat sensitive amberina

[glassobsessed]

12 cm tall, both with acid etched mark according to Hajdamach (British Glass 1800-1914) dating to between 1906 and 1935. The bowls are a uranium glass, shading runs from pink to yellow to more of an orange at the base.

John

[Lustrousstone]

Swoon

[glassobsessed]

Sorry Christine, I should have left a glass of cold water for you.

When I bought them I did not think they would turn out to be as unusual as they appear to be.

[flying free]

wow.  Interesting glass technique as well as fabulous glasses.  Is it known that Thomas Webb did amberina?
Is it linked time wise or development wise with their Alexandrite?

m

[glassobsessed]

Page 315 Hajdamach, British Glass 1800-1914 has a few paragraphs on heat sensitive glass and appendix 7 has some fascinating bits and bobs as well (including recipes - who knew ground slate might be used?), they run up to about 1900 in date.

[flying free]

Actually just a thought and a question - the glass I see as Amberina tends to be American and isn't usually uranium glass is it?


m

[glassobsessed]

Most is not but it appears that the older amberina could be uranium. I think the more modern formula might include cadmium (or selenium?) to achieve heat striking.