| Issuer | Date | Desc | State | ||
| - | no image | Nicaragua | 1/22/1975 | empty sheet (#28035) | incomplete |
| - | no image | Nicaragua | 4/16/1975 | empty sheet (#85956) | incomplete |
| - | no image | Nicaragua | 4/16/1975 | empty sheet (#85957) | incomplete |
| - | no image | Nicaragua | 8/15/1975 | 14th World Boy Scout Jamboree, sheet of 2 types | all added |
| - | no image | Nicaragua | 8/15/1975 | empty sheet (#28037) | incomplete |
| - | no image | Nicaragua | 8/15/1975 | empty sheet (#85958) | incomplete |
| - | no image | Nicaragua | 8/15/1975 | empty sheet (#85959) | incomplete |
| - | no image | Nicaragua | 8/15/1975 | empty sheet (#85960) | incomplete |
| - | no image | Nicaragua | 8/15/1975 | empty sheet (#85961) | incomplete |
| - | no image | Nicaragua | 11/15/1975 | empty sheet (#85962) | incomplete |