Issuer | Date | Desc | State | ||
- | Poland | 7/2/1968 | sheet of 2 types | all added | |
- | Poland | 10/1/1968 | empty sheet (#2145) | incomplete | |
- | Poland | 10/1/1968 | empty sheet (#2146) | incomplete | |
- | Poland | 10/1/1968 | empty sheet (#2147) | incomplete | |
- | Poland | 10/1/1968 | empty sheet (#2148) | incomplete | |
- | Poland | 10/1/1968 | empty sheet (#2149) | incomplete | |
- | Poland | 10/1/1968 | empty sheet (#2150) | incomplete | |
- | Poland | 10/1/1968 | empty sheet (#2151) | incomplete | |
- | Poland | 10/1/1968 | empty sheet (#2152) | incomplete |