Ras Al Khaima 1972 Skylab imperf set of 6 imperf deluxe sheets on pink paper, unmounted mint, as Mi 752-57
Ras Al Khaima 1972 Skylab imperf set of 6 imperf deluxe sheets on pink paper, unmounted mint, as Mi 752-57
Ras Al Khaima 1972 Skylab imperf set of 6 imperf deluxe sheets on pink paper, unmounted mint, as Mi 752-57