| Issuer | Date | Desc | State | ||
| - | no image | Paraguay | 2/4/1981 | empty sheet (#36815) | incomplete |
| - | no image | Paraguay | 2/9/1981 | empty sheet (#36816) | incomplete |
| - | no image | Paraguay | 6/27/1981 | empty sheet (#36817) | incomplete |
| - | no image | Paraguay | 6/29/1981 | empty sheet (#36818) | incomplete |
| - | no image | Paraguay | 7/10/1981 | empty sheet (#36819) | incomplete |
| - | no image | Paraguay | 7/10/1981 | empty sheet (#36820) | incomplete |
| - | no image | Paraguay | 10/9/1981 | empty sheet (#36821) | incomplete |
| - | no image | Paraguay | 10/9/1981 | empty sheet (#36822) | incomplete |
| - | no image | Paraguay | 10/13/1981 | empty sheet (#36823) | incomplete |
| - | no image | Paraguay | 10/15/1981 | empty sheet (#36824) | incomplete |
| - | no image | Paraguay | 12/4/1981 | empty sheet (#36825) | incomplete |
| - | no image | Paraguay | 12/4/1981 | empty sheet (#36826) | incomplete |
| - | no image | Paraguay | 12/21/1981 | empty sheet (#36827) | incomplete |
| - | no image | Paraguay | 12/21/1981 | empty sheet (#36828) | incomplete |