Stamps of Republic of the Congo, 11 base day
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postage
1961, Mar 11 unwmk (no perf info)
| - | 5fr | flag of Congo & map of Congo & UN emblem | .20 | .20 | ||
| - | 20fr | flag of Congo & map of Congo & UN emblem | .20 | |||
| - | 100fr | flag of Congo & map of Congo & UN emblem |
1967, Dec 11 21st Anniversary of UNICEF issue
| - | 90fr | multi |
1978, Jul 11 endangered animals (1978 Republic of the Congo) (6 stamps)
| - | 35fr | multi | Okapia johnstoni | |||
| - | 60fr | multi | Syncerus caffer | |||
| - | 85fr | multi | Diceros bicornis | |||
| - | 150fr | multi | Pan troglodytes | |||
| - | 200fr | multi | Hippopotamus amphibius | |||
| - | 300fr | multi | Adenota kob |
1980, Sep 11 President Neto of Angola death 1st issue
| - | 100fr | multi |
1982, Dec 11
| - | 100fr | multi |
airmail
1985, Apr 11 200th Anniversary of the Birth of John J. Audubon issue
| - | 100fr | multi | Pheucticus melanocephalus (Audubon) | |||
| - | 150fr | multi | Eudocimus ruber (Audubon) | |||
| - | 200fr | multi | Buteo jamaicensis (Audubon) | |||
| - | 350fr | multi | Camptorhynchus labradorius |
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