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Alvin Trig-Scale Triangle

$9.00
sold out

Alvin 10” computing trig-scale adjustable triangle. Appears to be unused or barely used, in great condition. Instructions included, in original package. Retails for $33 on Amazon and about $20-25 on other sites.

Alvin 10” computing trig-scale adjustable triangle. Appears to be unused or barely used, in great condition. Instructions included, in original package. Retails for $33 on Amazon and about $20-25 on other sites.