William Herschel & John Herschel
Great Britain
1970. Anniversaries
| SG823 | 1s.9d | William & John Herschel, Baily and telescope |
First day covers
North Korea
1980. 450th Death anniversary of Kepler
| SGN2014 | 20ch | J Kepler and others |
Herschel and his telescope
Nicaragua
1989. Appearance of Halley's comet
| SG2712 | 15c | Herschel's telecope |
Sierra Leone
1990. Exploration of Mars
| SG1380-15 | 36 x 175l | Astronomers (W. Herschel). spacecrafts |
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