| Issuer | Date | Desc | State | ||
| - | no image | Cambodia | 1/2/1975 | empty sheet (#28359) | incomplete |
| - | no image | Cambodia | 1/2/1975 | empty sheet (#28360) | incomplete |
| - | no image | Cambodia | 1/2/1975 | empty sheet (#28361) | incomplete |
| - | no image | Cambodia | 1/2/1975 | empty sheet (#28362) | incomplete |
| - | no image | Cambodia | 2/13/1975 | empty sheet (#28363) | incomplete |
| - | no image | Cambodia | 2/13/1975 | empty sheet (#28364) | incomplete |
| - | no image | Cambodia | 2/13/1975 | empty sheet (#28365) | incomplete |
| - | no image | Cambodia | 2/13/1975 | empty sheet (#28366) | incomplete |
| - | no image | Cambodia | 4/12/1975 | empty sheet (#28367) | incomplete |
| - | no image | Cambodia | 4/13/1975 | empty sheet (#28368) | incomplete |