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What is a Cotisso?

What is a Cotisso? Having never heard the name Cotisso before, I had to do some research to find out what they were talking about at the Effetre factory.  It seems that this is the name they use to refer to a chunk of glass that here in the U.S is called glass cullet. So why am I talking about cotisso’s (A.K.A. cullet)?  Because when Mike went over to Europe last October, he got the factory to let him pick out a bunch of different colors of these intriguing chunks of glass and Frantz Art Glass is now offering some
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Categories: 104 COE Glass Review, Flameworking 104 Glass, Lampworking, and Promotion.