Pi represents the ratio of the circumference to the diameter of a circle. Show your intelligence with our pi lapel pin! Handcast in solid, lead-free pewter, each of our pins is an original three dimensional sculpture signed by the artist, Jim Clift. Handcrafted in our studio in Coventry, RI, our pins are 100% US made and come packaged on one of our signature presentation cards!
Pi represents the ratio of the circumference to the diameter of a circle. Show your intelligence with our pi lapel pin! Handcast in solid, lead-free pewter, each of our pins is an original three dimensional sculpture signed ...
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