Tropical
Fish, issued by the Republic of Congo on November 28, 1961.
- (0.5F. and 3 F.) Double-lined flying
fish (Fodiator acutus — formerly Elagatus bipinnulatus), designed and engraved by René Cottet
- (1F. and 2F.) Sloane's viper
fish (Chauliodus sloanei), designed by Samson and engraved by René Cottet
- Gigantic telescope
fish (Argyropelecus gigas), designed by Samson and engraved by René Cottet
- Long-finned dragon
fish (Caulolepis longidens), designed and engraved by René Cottet





