Euclid's 47th Problem Pythagorean Theorem with Grid Lapel Pin Masonic Combo… — product photo

Product photo from the Amazon listing. Shown for identification.

The Masonic Exchange

Euclid's 47th Problem Pythagorean Theorem with Grid Lapel Pin Masonic Combo…

4.9(15)

Three matching pins at about 3/4 inch each, built around the 47th Problem of Euclid. The geometry carries meaning from the Master Mason degree onward, and the set format makes more sense than buying one at a time.

$19.99

View on Amazon

$19.99 on Amazon · price and availability can change

From the listing

  • Set Contains Three Matching Lapel Pins
  • Each Pin Measures Approximately 3/4'' Tall
  • Great Value! - Save Money by Purchasing a Set
  • Makes a Perfect Gift!
  • Set Includes: Lapel Pin - TME-JWL-L-00074

ASIN B00ET8RBL0 · Listing data checked 2026-09-11. Prices and availability change constantly on Amazon; the listing itself is always the truth.

Related

All Pins