SIERRA LEONE 1991 CHARLES DE GAULLE BIRTH CENTENARY UNADOPTED DESIGN
75l Charles de Gaulle Birth Centenary unadopted imperforate proof single prepared for the Anniversaries & Events issue of 20 December 1991. Affixed to thin card ex Questa presentation folder. Very scarce.
Note: similar designs were released 18 November 1991 for St Vincent, 23 December 1991 for Guyana, and 29 January 1992 for Maldives