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