Bank of British North America, Canada, uniface obverse and reverse colour trial $50, 3 July 19-, black on green, mauve and orange underprint, portrait of Queen Alexandra at lower centre, printed signature of Mackenzie low right, reverse, green, bank arms at centre, value at left and right, (Pick S434ct, Charlton 55-24-14), perforated, red SPECIMEN WATERLOW & SONS LIMITED overprint at left and right, both in PMG holders 66 EPQ. Spink have in the past sold a few examples of this note but all with Stikeman signature. Mackenzie signature almost certainly the rarer type(2)
