China Shanghai 50 customs gold units 1930 baanknote primarily used to facilate customs payments, but during and after World War ll the notes were used for general circulation. The obverse depicting Sun Yat-Sen (1866-1925), Chinese revolutionary statesman, physician, and plolitical philosopher.  Printed by the American Bank Note Company, the note color is purple with blue, red and yellow security feature. The Reverse depicting Central Bank of China, Shanghai.