FRENCH EQUATORIAL AFRICA: pattern 40 francs, Paris mint, ND (1958), KM--, Lec-21, aluminum-bronze pattern by Raymond Corbin, mask at center, mintage of only 33 coins, NGC graded MS64, RR. This piece was struck as part of the 1958 coin design competition (Concours Monétaire de 1958).
Estimate: 500-700 USD