 |
What: stamp
Type: Great Britain postage 3/24/1987 31p multi issue=Principia Mathematica publication 300th d=glass vessel with spectrum & Optick Treatise unwmk State: mint Visibility: public Owner: Stan Shebs |
Created March 28, 2013, 8:14 pm |
| |
What: stamp
Type: Great Britain postage 3/24/1987 31p multi issue=Principia Mathematica publication 300th d=glass vessel with spectrum & Optick Treatise unwmk State: mint Visibility: public Owner: Stan Shebs |
Created March 28, 2013, 8:14 pm |