Oman 1986 Queen's 60th Birthday imperf souvenir sheet (2R value) with AMERIPEX opt in blue unmounted mint
Oman 1986 Queen's 60th Birthday imperf souvenir sheet (2R value) with AMERIPEX opt in blue unmounted mint
Oman 1986 Queen's 60th Birthday imperf souvenir sheet (2R value) with AMERIPEX opt in blue unmounted mint