BELGIAN CONGO. Banque Centrale Du Congo Belge Et Du Ruanda-Urundi. 10 Francs, 1957. P-30b. PCGS Banknote Superb Gem Uncirculated 67 PPQ.Printed by W&S. Watermark of giraffes head. Signature combination of Peigneux and Martin. PCGS Banknote Pop 1/None Finer.