Stamps of Republic of the Congo, 23 base day
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postage
1962, Mar 23 unwmk (no perf info)
| - | 20fr | Brazzaville market | .20 |
1964, Mar 23 World Meteorological Day issue
| - | 50fr | multi |
1976, Dec 23 Tropical Flowers (1976)
| - | 5fr | multi | Nymphaea micrantha | .20 | ||
| - | 10fr | multi | Heliotrope | .20 | ||
| - | 15fr | multi | Strelitzia reginae |
1978, Sep 23 Kwame Nkrumah issue
| - | 60fr | multi |
1978, Nov 23 450th Anniversary of the Death of Albrecht Durer issue (5 stamps)
| - | 65fr | multi | .20 | |||
| - | 150fr | multi | ||||
| - | 250fr | multi | ||||
| - | 350fr | multi | ||||
| - | 500fr | multi | (1979) | — | — |
1980, Jun 23
| - | 45fr | multi | Mossaka Harbor | .20 | ||
| - | 90fr | multi | Mossaka Harbor |
1983, Aug 23 100th Anniversary of Evangelism issue
| - | 150fr | multi | Mgr. A. Carrie | |||
| - | 250fr | multi | Mgr. Augouard |
1991, Aug 23 Cars and Space issue (7 stamps)
| - | 35fr | multi | .20 | |||
| - | 40fr | multi | Vincenzo Lancia | .20 | ||
| - | 75fr | multi | ||||
| - | 80fr | multi | ||||
| - | 500fr | multi | ||||
| - | 600fr | multi | ||||
| - | 750fr | multi | — | — |
2002, Jul 23 birds (2002 Republic of the Congo)
| - | 40fr | calao | — | — | ||
| - | 80fr | Ciconia ciconia | — | — | ||
| - | 120fr | grey heron | — | — | ||
| - | 270fr | Leptoptilos crumeniferus | — | — |
airmail
1964, Jun 23 5th Anniversary of Equatorial African Heads of State Conference issue
| - | 100fr | multi |
1986, Dec 23 Christmas 1986 issue - paintings by Rogier van der Weyden
| - | 250fr | multi | "Virgin and Child" - Rogier van der Weyden | |||
| - | 440fr | multi | "Nativity" - Rogier van der Weyden | |||
| - | 500fr | multi | "Virgin of the Pink" - Rogier van der Weyden |
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