Sheets of North Korea, 1990 incomplete
| Issuer | Date | Desc | State | ||
| - | no image | North Korea | 1/17/1990 | empty sheet (#51644) | incomplete |
| - | no image | North Korea | 4/15/1990 | empty sheet (#51645) | incomplete |
| - |  |
North Korea | 5/3/1990 | empty sheet (#19630) | incomplete |
| - |  |
North Korea | 5/10/1990 | empty sheet (#19631) | incomplete |
| - |  |
North Korea | 5/24/1990 | empty sheet (#19633) | incomplete |
| - |  |
North Korea | 8/8/1990 | empty sheet (#19634) | incomplete |
| - | no image | North Korea | 8/24/1990 | empty sheet (#51646) | incomplete |
| - | no image | North Korea | 9/15/1990 | empty sheet (#51647) | incomplete |
| - |  |
North Korea | 10/11/1990 | empty sheet (#19632) | incomplete |
| - | no image | North Korea | 10/23/1990 | empty sheet (#51648) | incomplete |