Ma Huan
The Chinese merchant Ma Huan (1413–51) outlines the standardised weight and currency system in place at the port city of Cochin. Ma Huan noted that gold coins, known as "fanam", or locally known as "panam", were issued in Cochin and weighed a total of one "fen" and one "li" according to the Chinese standards. They were of fine quality and could be exchanged in China for 15 silver coins of four-"li" weight each.