| BULGARIA SCOTT # C79 SPACE MNH |
| BULGARIA SCOTT # C81 SPACE MNH |
| BULGARIA SCOTT # C84-5 SPACE MNH |
| BULGARIA SCOTT # C77 IMPERF SPACE MNH |
| BULGARIA SCOTT # C82-3 SPACE MNH |
| BULGARIA SCOTT # C94-6 SPACE MNH |
| BULGARIA SCOTT # C80 SPACE MNH |
| BULGARIA SCOTT # C77 SPACE MNH |
| BULGARIA SCOTT # C92-3 SPACE MNH |
| BULGARIA 1983 SPACE TERESHKOVA Soviet COSMONAUTS |
| - Russia Bulgaria Czech Rep. MNH 80 stamp Space Gagarin |
| Bulgaria - uprated PSE with space shuttle commem, 1992 |
| Bulgaria - with Gagarin space semi-postal 20 + 10 |
| BULGARIA SCOTT# 3387A SOVIET SPACE SHUTTLE/SPACE TOPIC |
| Stamps from Bulgaria showing Space ships x 3 #71 |
| Bulgaria SPACE # oz 35 |
| BULGARIA SCOTT# 3295 MNH SPACE TOPICAL SOUVENIR SHEET |
| BULGARIA 35 FDC'S MIXED SPACE THEMES (#907) |
| Bulgaria C102-C103,MNH. Space research |
| Bulgaria SPACE # oz 41 |
| BULGARIA SCOTT # C99-101,CB3,C101a SPACE MNH |
| BULGARIA STAMPS NO RESERVE SC#C81 MH SPACE SET 1961 |
| BULGARIA STAMPS NO RESERVE SC#C83 SPACE 1961 |
| BULGARIA C126 - Apollo-Soyuz Space Program (pf15768) |
| - 5x Bulgaria - 1991 - 5 FDC - Space - Europa Cept |
| - Bulgaria - 1962 - FDC - Space |
| BULGARIA MNH 1093 SPACE IMPERF SET $5.00 |
| BULGARIA STAMPS NO RESERVE SC#C80 MH SPACE SET 1960 |
| BULGARIA 1983 lst Woman in Space Envelope |