Stamps of Portuguese Congo, 20r denom
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postage
1894, Aug 5 1894 issue (no wmk info) (no perf info)
| - | 20r | lav | King Carlos | — | — |
1898 1898 issue
| - | 20r | grayvio | King Carlos | — | — |
1911 1911b issue ovpted
| - | 20r | grayvio | ovpt, King Carlos | .20 |
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