| Issuer | Date | Desc | State | ||
| - | no image | Bolivia | 4/13/1981 | empty sheet (#11153) | incomplete |
| - | no image | Bolivia | 4/13/1981 | empty sheet (#11154) | incomplete |
| - | no image | Bolivia | 4/13/1981 | empty sheet (#11155) | incomplete |
| - | no image | Bolivia | 4/13/1981 | empty sheet (#11156) | incomplete |
| - | no image | Bolivia | 4/15/1981 | empty sheet (#11157) | incomplete |
| - | no image | Bolivia | 4/15/1981 | empty sheet (#11158) | incomplete |
| - | no image | Bolivia | 4/15/1981 | empty sheet (#11159) | incomplete |
| - | no image | Bolivia | 4/15/1981 | empty sheet (#11160) | incomplete |
| - | no image | Bolivia | 4/15/1981 | empty sheet (#11161) | incomplete |
| - | no image | Bolivia | 4/18/1981 | empty sheet (#11162) | incomplete |
| - | no image | Bolivia | 4/19/1981 | empty sheet (#11163) | incomplete |
| - | no image | Bolivia | 8/11/1981 | empty sheet (#11164) | incomplete |
| - | no image | Bolivia | 8/11/1981 | empty sheet (#11165) | incomplete |
| - | no image | Bolivia | 8/11/1981 | empty sheet (#11166) | incomplete |