 |
What: stamp
Type: Great Britain postage 3/24/1987 22p multi issue=Principia Mathematica publication 300th d=Sun & planets & Motion of Bodies in Ellipses unwmk State: mint Visibility: public Owner: Stan Shebs |
Record of changes |
| |
What: stamp
Type: Great Britain postage 3/24/1987 22p multi issue=Principia Mathematica publication 300th d=Sun & planets & Motion of Bodies in Ellipses unwmk State: mint Visibility: public Owner: Stan Shebs |
Record of changes |