| Issuer | Date | Desc | State | ||
| - | no image | Guyana | 5/2/1975 | empty sheet (#47927) | incomplete |
| - | no image | Guyana | 7/1/1975 | empty sheet (#47928) | incomplete |
| - | no image | Guyana | 10/2/1975 | empty sheet (#47929) | incomplete |
| - | no image | Guyana | 11/14/1975 | empty sheet (#47930) | incomplete |