Mauritania 1962 Slender-billed gull 500f opt'd Europa with types II (MIFERMA boxed) opt on SG 148 (Mi 181vi) unmounted mint
Mauritania 1962 Slender-billed gull 500f opt'd Europa with types II (MIFERMA boxed) opt on SG 148 (Mi 181vi) unmounted mint
Mauritania 1962 Slender-billed gull 500f opt'd Europa with types II (MIFERMA boxed) opt on SG 148 (Mi 181vi) unmounted mint