Colnect-122-499-The-Principia-Mathematica.jpg What: stamp
Type: Great Britain postage 3/24/1987 18p multi issue=Principia Mathematica publication 300th d=apple & geometry diagram & Principia Mathematica title unwmk perf=14.25x13.75

State: mint

Visibility: public



Owner: Stan Shebs




Created March 28, 2013, 8:14 pm