| Issuer | Date | Desc | State | ||
| - | |
Yemen | 3/30/1964 | empty sheet (#16249) | incomplete |
| - | |
Yemen | 4/10/1964 | empty sheet (#16250) | incomplete |
| - | |
Yemen | 6/1/1964 | empty sheet (#16251) | incomplete |
| - | |
Yemen | 6/20/1964 | empty sheet (#16252) | incomplete |
| - | |
Yemen | 11/30/1964 | empty sheet (#16253) | incomplete |