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What were the weights of "large yellow croaker" and "small yellow croaker" in Shanghai's physical gold before liberation?
Before liberation, the current weight units of "Pseudosciaena crocea" and "Pseudosciaena crocea" in Shanghai physical gold were 3 1 2.5g and 31g respectively.

At the end of 1946, new gold bars were added by Shanghai Bund Central Mint. After casting, it will be delivered to the central bank by air for later use and public exchange. There are five kinds of gold bars, one or two, two or three, five or two, and a dozen. In the old days, Shanghai was commonly known as "large yellow croaker", and one or two gold bars were "small yellow croaker".

Extended data:

The purchasing power of gold bars in the Republic of China;

At the beginning of the Anti-Japanese War, a small yellow croaker can probably be exchanged for 30-40 oceans. By the end of the Anti-Japanese War, the ratio of gold to silver was getting bigger and bigger. Before 1949, three small yellow croaker can buy a small quadrangle in Beijing.

After the establishment of People's Republic of China (PRC), the factory steel bars preserved in Chinese mainland were exchanged by banks and recycled and melted by the government. In addition, the folk tradition of melting gold bars into jewelry. Up to now, the number of gold bars in the Republic of China is very rare, and the well-preserved gold bars in the Central Mint are even rarer. Because it is cast and distributed by government agencies, it has important historical research and collection value.

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