"Cabinet Fang" has existed since ancient times, and it is not a new creation in Dongming City.

Merchants in the south of the Yangtze River usually deposit money in the government-run cabinets, receive a "flying money", exchange them at the cabinets in Beijing, and pay a rent according to the length of the day, and then they can withdraw a considerable amount of money. "Flying money" is equivalent to a voucher for withdrawing money, indicating the place and amount of deposit, leaving a secret note, which cannot be forged.

The "cabinet shop" in Dongming City is the only one, which is limited to local access to fisheye stones, and on this basis, it covers the "quality warehouse" exchange