| Issuer | Date | Desc | State | ||
| - | no image | Panama | 1965 | empty sheet (#28166) | incomplete |
| - | no image | Panama | 1965 | empty sheet (#28171) | incomplete |
| - | no image | Panama | 1965 | empty sheet (#28172) | incomplete |
| - | no image | Panama | 5/12/1965 | empty sheet (#28167) | incomplete |
| - | no image | Panama | 5/12/1965 | empty sheet (#28168) | incomplete |
| - | no image | Panama | 5/12/1965 | empty sheet (#28169) | incomplete |
| - | no image | Panama | 5/12/1965 | empty sheet (#28170) | incomplete |
| - | no image | Panama | 8/23/1965 | empty sheet (#28173) | incomplete |
| - | no image | Panama | 8/23/1965 | empty sheet (#28174) | incomplete |
| - | no image | Panama | 10/27/1965 | empty sheet (#28175) | incomplete |
| - | no image | Panama | 12/7/1965 | Marine Life 1965, sheet of 3 types | incomplete |