Mercantile Bank of India,$10, colour trial in green, no date (but should be 1912 as the note has the Macdonald signature),green on yellow and green underprint, sampan, houses and bridge near lakeside at centre, reverse green and black, Mercury with winged helmet at centre,(Pick 236ct),PMG 63 NET, previously mounted and paper toned, very rare and has not been offered for a long time.