FRENCH EQUATORIAL AFRICA. Institut dEmission. 500 Francs, ND (1957). P-33s. Specimen. PCGS Currency Very Choice New 64 PPQ.Specimen. A design which is highly rare in issued form in Uncirculated grades making these attractive Specimen notes the alternative. The fully original piece here shows free from wear and presents strong color throughout. Perforated Specimen at right and seen with black overprint at lower right center. Back with terrific freight locomotive crossing bridge.