| Issuer | Date | Desc | State | ||
| - | |
Marshall Islands | 1/17/2006 | empty sheet (#25951) | incomplete |
| - | no image | Marshall Islands | 1/27/2006 | empty sheet (#25952) | incomplete |
| - | |
Marshall Islands | 3/20/2006 | empty sheet (#25953) | incomplete |
| - | no image | Marshall Islands | 5/27/2006 | empty sheet (#25954) | incomplete |
| - | no image | Marshall Islands | 5/27/2006 | empty sheet (#25955) | incomplete |
| - | |
Marshall Islands | 7/1/2006 | empty sheet (#25956) | incomplete |
| - | |
Marshall Islands | 10/9/2006 | Merchant Ships 2006, sheet of 10 types | incomplete |