Banque du congo Belge, colour trial specimen 5 francs, ND (1914-24), no serial numbers, black on green underprint, woman and child at left, reverse, red, elephant and hippo, (Pick 4b6t, TBB B202), SPECIMEN NO VALUE overprint in red, Waterlow & Sons cancelled stamp at lower right, 358 at top margin, previously mounted, in PMG holder 63 Choice Uncirculated, rare