| Issuer | Date | Desc | State | ||
| - | no image | Paraguay | 1/2/1988 | empty sheet (#36911) | incomplete |
| - | no image | Paraguay | 1/4/1988 | empty sheet (#36912) | incomplete |
| - | no image | Paraguay | 1/18/1988 | empty sheet (#36913) | incomplete |
| - | no image | Paraguay | 3/10/1988 | empty sheet (#36914) | incomplete |
| - | no image | Paraguay | 4/12/1988 | empty sheet (#36915) | incomplete |
| - | no image | Paraguay | 8/3/1988 | empty sheet (#36916) | incomplete |
| - | no image | Paraguay | 9/2/1988 | empty sheet (#36917) | incomplete |
| - | no image | Paraguay | 11/25/1988 | empty sheet (#36918) | incomplete |
| - | no image | Paraguay | 12/12/1988 | empty sheet (#36919) | incomplete |