Covers tagged "astronomy" (clear filter)

Space Achievement plate block, GAMM cachet, Kennedy Space Center 1981
Space Achievement plate block, GAMM cachet, Kennedy Space C…
Australia International Space Year 1992 Miniature Sheet
Australia International Space Year 1992 Miniature Sheet
Aryabhata 1975 – India's First Satellite
Aryabhata 1975 – India's First Satellite
Canada in Space Se-Tenant Hologram Stamps, October 1, 1992
Canada in Space Se-Tenant Hologram Stamps, October 1, 1992
Skylab Commemorative - Scott #1529, Houston FDC (1974)
Skylab Commemorative - Scott #1529, Houston FDC (1974)
1992 Space Accomplishments FDC – Long Beach Business Center
1992 Space Accomplishments FDC – Long Beach Business Center