| Issuer | Date | Desc | State | ||
| - | no image | Barbuda | 1/25/1993 | empty sheet (#42780) | incomplete |
| - | no image | Barbuda | 1/25/1993 | sheet of 1 type | |
| - | no image | Barbuda | 3/22/1993 | empty sheet (#42782) | incomplete |
| - | no image | Barbuda | 3/22/1993 | empty sheet (#42783) | incomplete |
| - | no image | Barbuda | 5/10/1993 | sheet of 1 type | |
| - | no image | Barbuda | 5/10/1993 | sheet of 1 type | |
| - | no image | Barbuda | 6/29/1993 | sheet of 1 type | |
| - | no image | Barbuda | 6/29/1993 | empty sheet (#42787) | incomplete |
| - | no image | Barbuda | 8/16/1993 | International Space Year, sheet of 1 type | |
| - | no image | Barbuda | 8/16/1993 | empty sheet (#42789) | incomplete |
| - | no image | Barbuda | 8/16/1993 | empty sheet (#42790) | incomplete |
| - | no image | Barbuda | 8/16/1993 | empty sheet (#42791) | incomplete |
| - | no image | Barbuda | 9/21/1993 | empty sheet (#42792) | incomplete |
| - | no image | Barbuda | 9/21/1993 | empty sheet (#42793) | incomplete |
| - | no image | Barbuda | 11/11/1993 | empty sheet (#42794) | incomplete |
| - | no image | Barbuda | 11/11/1993 | empty sheet (#42795) | incomplete |
| - | no image | Barbuda | 11/11/1993 | empty sheet (#42796) | incomplete |