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<p>[QUOTE="George Nesmith, post: 2325161, member: 177"]Lead glass was devolved to replace the flint glass, containing, chelated flint. The flint was brittle and hard to cut. The lead formula was "softer" and easier to cut. Unfortunately lead glass was hard to press in a mold for mass production, About 1860 "Soda" glas was developed which worked well in a pressed mold and for production blowing. I is slightly harder to cut.[/QUOTE]</p><p><br /></p>
[QUOTE="George Nesmith, post: 2325161, member: 177"]Lead glass was devolved to replace the flint glass, containing, chelated flint. The flint was brittle and hard to cut. The lead formula was "softer" and easier to cut. Unfortunately lead glass was hard to press in a mold for mass production, About 1860 "Soda" glas was developed which worked well in a pressed mold and for production blowing. I is slightly harder to cut.[/QUOTE]
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