How much did a gold bar weigh during the Republic of China?

The standard contract is 1 1,000g/lot, and the delivery gold ingot is 1 1,000g or 3,000g. According to its benchmark price of 209.99, its value is 209,990 yuan and 629,970 yuan respectively.

Zhang Xueliang's should be a big gold bar. Not small, it should be 3000 grams. . .