Pi 3.14 Coin in Copper
$15.00
Sale price
$15.00
Regular price
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An irrational coin
Pi 3.14 Coin in Copper
$15.00
Sale price
$15.00
Regular price
An irrational coin
Feeling irrational? It may be a sine to take some deep breaths and trace pi's digits by hand for a calming sensory experience.
The number pi (π) is a mathematical constant, approximately equal to 3.14159. It is defined in Euclidean geometry as the ratio of a circle’s circumference to its diameter.
Included:
- Pi coin minted in solid copper in West Fork, AR
- Solid Copper - 29 g
- 1.54 in (3.9 cm) diameter
- Antiqued patina
This heavy copper coin feels good in the hand and the pocket. The copper coin blank is pre-tumbled before minting for a smooth edge and then given an antiqued finish.
Each Pi coin comes in its own wax-sealed packaging with useful and useless pi facts.
Engraved by Woody Maringer. Learn more about our artists.
© Shire Post Mint. All rights reserved.
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Your Purchase Does More:
Science Education Programs: Every purchase helps fund our guest lectures, science fairs, and community science clubs — bringing real scientific literacy to curious minds of all ages.
Sustainable Small Business: We partner with agroforestry and carbon capture organizations to keep our entire emissions footprint net negative — not just neutral.
Independent Researchers: We source directly from active research labs, so your purchase puts money back into the hands of working scientists.
