| Issuer | Date | Desc | State | ||
| - | no image | Nicaragua | 4/15/1976 | 200th Anniversary of the American Revolution b, empty sheet (#28038) | incomplete |
| - | no image | Nicaragua | 7/1/1976 | empty sheet (#85943) | incomplete |
| - | no image | Nicaragua | 10/27/1976 | empty sheet (#85944) | incomplete |
| - | no image | Nicaragua | 10/28/1976 | empty sheet (#85945) | incomplete |