Liberia 1952 Ashmun 4c Map of Marshall perf proof in issued colours opt'd Specimen unmounted mint (as SG 718)
Liberia 1952 Ashmun 4c Map of Marshall perf proof in issued colours opt'd Specimen unmounted mint (as SG 718)
Liberia 1952 Ashmun 4c Map of Marshall perf proof in issued colours opt'd Specimen unmounted mint (as SG 718)