Stamps of Rio de Oro, 600 ndenom
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postage
1905, Dec unwmk (no perf info)
| - | 10c | graybrn | King Alfonso XIII | — | — |
1907 ovpted
| - | 10c on 50c | dkgrn | King Alfonso XIII | — | — | |
| - | 10c on 75c | dkvio | King Alfonso XIII | — | — |
1907 1907 issue
| - | 10c | choc | King Alfonso XIII | — | — |
1908 ovpted
| - | 10c on 50c | blkvio | King Alfonso XIII | — | — |
1909
| - | 10c | King Alfonso XIII | — | — |
1910 1910 issue ovpted
| - | 10c on 5p | dlbl | King Alfonso XIII | — | — | |
| - | 10c on 10p | rose | King Alfonso XIII | — | — |
1911 1911 issue ovpted
| - | 10c on 3p | blgrn | King Alfonso XIII | — | — | |
| - | 10c on 2p | dlvio | King Alfonso XIII | — | — |
1912 1912 issue
| - | 10c | King Alfonso XIII | .20–.30 | .20 |
1914 1914 issue
| - | 10c | King Alfonso XIII | .20–.30 | .20 |
1917 ovpted
| - | 10c | ovpt, King Alfonso XIII | — | — |
1919 1919 issue
| - | 10c | King Alfonso XIII | .30–1.00 | .30–1.00 |
1920 1920 issue
| - | 10c | ltred | King Alfonso XIII | .30–1.00 | .30–1.00 |
1921 1921 issue
| - | 10c | King Alfonso XIII | — | — |
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