Stamps of Portuguese Congo, 15r denom
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postage
1894, Aug 5 1894 issue (no wmk info) (no perf info)
| - | 15r | dkbrn | King Carlos | — | — |
1898 1898 issue
| - | 15r | brn | King Carlos | — | — | |
| - | 15r | graygrn | King Carlos (1903) | — | — |
1902 1902 provisional b issue ovpted
| - | 15r | brn | ovpt, King Carlos | — | — |
1911 1911a issue ovpted on stamp of Angola
| - | 15r | graygrn | on 15r-graygrn (0) | — | — |
1911 1911b issue ovpted
| - | 15r | graygrn | on 15r-graygrn (2) | — | — |
1914 1914b issue ovpted
| - | 15r | brn | ovpt, King Carlos | — | — |
1914 1914c issue ovpted
| - | 15r | brn | ovpt, King Carlos | — | — |
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