| Issuer | Date | Desc | State | ||
| - | no image | Nicaragua | 1/11/1978 | empty sheet (#85949) | incomplete |
| - | no image | Nicaragua | 2/23/1978 | empty sheet (#85950) | incomplete |
| - | no image | Nicaragua | 4/7/1978 | empty sheet (#85951) | incomplete |
| - | no image | Nicaragua | 8/1/1978 | empty sheet (#85952) | incomplete |
| - | no image | Nicaragua | 9/29/1978 | empty sheet (#85953) | incomplete |
| - | no image | Nicaragua | 10/25/1978 | empty sheet (#85954) | incomplete |
| - | no image | Nicaragua | 12/12/1978 | empty sheet (#85955) | incomplete |