Stamps of Rio de Oro, 1911 issue
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postage
1911 1911 issue ovpted King Alfonso XIII unwmk (no perf info) (6 stamps)
| - | 2c on 4p | dkbl | King Alfonso XIII | — | — | |
| - | 5c on 10p | grn | King Alfonso XIII | — | — | |
| - | 10c on 3p | blgrn | King Alfonso XIII | — | — | |
| - | 10c on 2p | dlvio | King Alfonso XIII | — | — | |
| - | 15c on 3p | blgrn | King Alfonso XIII | — | — | |
| - | 15c on 5p | red | King Alfonso XIII | — | — |
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