2023
Ross Dependency
Muri Bhalissa: Ross Dependency - Bolol tal-posta (1957 - 2024) - 4 bolol.
2024
Mount Erebus - Extremophiles
4. September WM: Xejn Qies ta'karta: 20 Disinn: Helcia Berryman Inċiżjoni: Brebner Print. Perforazzjoni: 14¼ x 14