Issuer | Date | Desc | State | ||
- | Poland | 3/8/1975 | empty sheet (#8834) | incomplete | |
- | Poland | 7/15/1975 | Apollo-Soyuz, sheet of 6, 3 types | all added | |
- | Poland | 9/24/1975 | American Revolution 200th, sheet of 3 types | all added | |
- | Poland | 11/22/1975 | Lodz 1975, sheet of 1 type | all added |