This listing is for a 2mm thin black Wissmach 90 coe 'Florentine' dichroic glass with the violet CBS coating. The Wissmach Florentine texture is a really sweet starburst style pattern.
Available in 3" x 5", 3" x 4", 3" x 3", 2" x 3" and 2" x 2" pieces.
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Coatings by Sandberg uses this system to name its glass:
First name - Transmitted Color
Second name - Reflected Color. Color shifts when fired.