香港有利银行伍拾圆试色样票(1912-30),蓝色调,PMG 64 EPQ Choice Uncirculated,罕品;Mercantile Bank of India, $50, colour trial, no date (1912-30), blue on multicolour, a vignette of sampans and junk boats on sea with an island in background, reverse brown, Mercury with a winged helmet,(Pick 238cts), PMG 64EPQ Choice Uncirculated, extremely choice condition and very rare