Pi day postage stamp, black and white

Black and white pi symbol day or math postage stamp

Pi symbol postage stamp

Fun postage stamp featuring a white pi symbol on a black circle. Great for Pi day or why not use for a math teachers graduation party invitations.

  • Landscape: 1.8″ x 1.3″ (image: 1.1″ x 1.1″).
  • 20 stamps per sheet.
  • Choose from many different postage denominations.