In that era of lack of materials, grain, oil and food were supplied in limited quantities, so there was such a thing as grain and oil tickets, and the people lived very carefully. It is very possible to measure edible oil with a small unit like "money", especially oil products like sesame oil, which are not used much. For example, in some places, only one or two sesame oil tickets are issued to each household during the New Year. Even if sesame oil is not used, sometimes when there is less than one or two small changes, "one" is used.

What do food stamps measured by "money" buy? There are special reasons for this. In those days, food was scarce and people lived very carefully. Nanjing people love to eat soybean milk fritters for breakfast. If you buy two fried dough sticks, you need one or two food stamps. If you only buy one, you must find a five-dollar food stamp. However, the minimum face value of food stamps issued in Jiangsu Province is one or two. In order to coordinate the change of fried dough sticks, Nanjing Grain Bureau issued food stamps of one yuan, two yuan and five yuan, which were sent to food stores for change, so the circulation was not large.