The largest and most predominant currency produced by the Central Mint was the silver dollar. Unlike the paper bills and the copper coins, the silver dollars had no Communist symbols and instead, they were the direct copy of other silver dollars produced by other mints in China, including the most popular Chinese silver dollar with Yuan Shikai's head engraved, and the eagle silver dollar of the Mexican peso. This and the fact that the coin was made of the precious metal silver, enabled them to be circulated in the rest of China and thus was the trade currency of choice.