| Issuer: Poland
Issue: 6th trade union congress Date: 6/2/1967 (1967 sheets) INCOMPLETE Block 1 (0, 0 x 0) 0, 0: 60g d=Badge of Socialist Working Brigade |
External links: Colnect 121240..Workers_Unions |
| Issuer: Poland
Issue: 6th trade union congress Date: 6/2/1967 (1967 sheets) INCOMPLETE Block 1 (0, 0 x 0) 0, 0: 60g d=Badge of Socialist Working Brigade |
External links: Colnect 121240..Workers_Unions |
