| Issuer | Date | Desc | State | ||
| - | no image | Panama | 11/24/1980 | empty sheet (#28209) | incomplete |
| - | no image | Panama | 11/26/1980 | empty sheet (#28210) | incomplete |
| - | no image | Panama | 11/27/1980 | empty sheet (#28211) | incomplete |
| - | no image | Panama | 12/3/1980 | empty sheet (#28218) | incomplete |