Sheets of Gibraltar, 1999
| Issuer | Date | Desc | State | ||
| - |  |
Gibraltar | 3/19/1999 | Maritime Heritage, sheet of 4 types | all added |
| - |  |
Gibraltar | 3/20/1999 | 30th Wedding Anniversary of John Lennon and Yoko Ono, sheet of 1 type | all added |
| - |  |
Gibraltar | 3/20/1999 | 30th Wedding Anniversary of John Lennon and Yoko Ono, sheet of 1 type | all added |
| - |  |
Gibraltar | 5/19/1999 | Wings of Prey - Fighter Jets, sheet of 3 types | all added |
| - |  |
Gibraltar | 5/19/1999 | Wings of Prey - Birds, sheet of 3 types | all added |
| - |  |
Gibraltar | 6/7/1999 | empty sheet (#63483) | incomplete |
| - |  |
Gibraltar | 6/7/1999 | empty sheet (#63484) | incomplete |
| - |  |
Gibraltar | 6/7/1999 | empty sheet (#63485) | incomplete |