| Issuer | Date | Desc | State | ||
| - | no image | Colombia | 12/1/1959 | 100th Anniversary of Colombian Stamps - Inscribed "1859 1959", empty sheet (#25652) | incomplete |
| - | no image | Colombia | 12/5/1959 | 40th Anniversary of Colombian "AVIANCA" Airmail Services, empty sheet (#25653) | incomplete |
| - | no image | Colombia | 12/5/1959 | 40th Anniversary of Colombian "AVIANCA" Airmail Services, empty sheet (#25654) | incomplete |