BELGIAN CONGO. Banque du Congo Belge. 20 Francs, 1925. P-10c. PMG Very Fine 25.Printed by BNB. Watermark of elephants head. Leopoldville. Dated October 3, 1925. A sensational grade for this elusive variety. Out of four notes graded by PMG, this note is Top Pop. Comment-free, and a key note for any Belgian Colonial collector. PMG Pop 1/None Finer.