BELGIAN CONGO. Lot of (9). Banque Centrale du Congo Belge et du Ruanda-Urundi. 10 Francs, 1957. P-30b. PCGS Banknote Choice Uncirculated 63 to Gem Uncirculated 65 PPQ. 9 pieces in lot. A consecutive grouping of these popular Waterlow and Sons 10 Francs issued for Belgian Congo.