I make Modern artifacts, This is a knapped piece of borosilicate glass. 
The Flaking on this piece is exceptional and wide spaced. 
If you collect art, arrowheads, lithic artifacts I think you'll enjoy owning an original unique artifact to show your friends. 
Please feel free to ask me anything and check out my artwork on Facebook
Apocalithics
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It measures approximately 4 " in Length and 1.5" in Width