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Small gold, white and black pin on a white background
  • Small gold, white and black pin on a white background
  • Lapel pin with gold, black and white geometric detail and gold triangular top resembling a square tool.
  • Lapel pin with gold, black and white geometric detail and gold triangular top resembling a square tool.
PA Past Master Lapel Pin
$5.00
In Pennsylvania and other jurisdictions, the symbol of a square over the 47th Problem of Euclid (or the Pythagorean Theorem) is used as the Past Master symbol. This pin is goldtone with blue and white enameling.

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