Issuer | Date | Desc | State | ||
- | Russia | 2/20/1968 | Soviet military 50th, empty sheet (#1581) | incomplete | |
- | Russia | 7/31/1968 | Olympics 1968, empty sheet (#1582) | incomplete | |
- | Russia | 8/25/1968 | Komsomol 50th, empty sheet (#1583) | incomplete | |
- | Russia | 11/29/1968 | TV satellite network, sheet of 3 types |