Yemen - Republic 1968 Ardenauer 15b Air imperf horiz pair with blue printing inverted (Mi 721var) unmounted mint
Yemen - Republic 1968 Ardenauer 15b Air imperf horiz pair with blue printing inverted (Mi 721var) unmounted mint
Yemen - Republic 1968 Ardenauer 15b Air imperf horiz pair with blue printing inverted (Mi 721var) unmounted mint