20 Years artificial Earth Satellites issue of Bulgaria
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Short desc: 20 Years artificial Earth Satellites
Issuer: Bulgaria Date: 10/14/1977 Occasion: artificial Earth Satellites Number/Year: 20 Consists of 3 stamps: (See stamps as list) 12s d=Astronauts in Space Earth Hemisphere 25s d=American Space Probe Mariner 6 Planet Mars 35s d=Soviet Space Probe Venera-4 Planet Venus All are airmail perf=13.5x13 |
