Stamps of Fernando Po, HABILITADO//PARA//CORREOS//50//CENT-PTA overprint
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postage
1884 1884 issue ovpted unwmk (no perf info)
| X | 50c on 2c | rose | King Alfonso XII | — | — | |
| - | 50c on 5c | graybl | King Alfonso XII (1887) | — | — | |
| - | 50c on 1c | grn | King Alfonso XII (1895) | — | — |
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