Sheets of Czechoslovakia, 1990
| Issuer | Date | Desc | State | ||
| - |  |
Czechoslovakia | 6/6/1990 | empty sheet (#4055) | incomplete |
| - |  |
Czechoslovakia | 6/6/1990 | empty sheet (#4056) | incomplete |
| - |  |
Czechoslovakia | 7/21/1990 | empty sheet (#4057) | incomplete |
| - |  |
Czechoslovakia | 9/29/1990 | empty sheet (#4058) | incomplete |