Colnect-2579-650-Pythagorean-theorem.jpg
Source: Colnect
Issued by: Nicaragua
Function: postage
Date: 5/15/1971
Issue: Physical Laws and Mathematical Formulas
Denom: 30c
Color: multicolored
Design: Pythagoras
Watermark: unwmk
Perf:
Catalog value:



External links:
Colnect 533759..em-Mathematics