The prototype of piling mould first appeared in 1970s, and 1980s was the era of rapid development of piling mould in Shanghai. Opportunities and information can make money. At first, it was foreign exchange certificates, and later it was sold directly in foreign exchange, mainly in US dollars. "Foreign exchange has been cut? Is there a foreign exchange cut? " At that time, there were many such "molds" at the entrance of the overseas Chinese shop on Nanjing East Road. Cigarette tickets, bicycle tickets and TV tickets are all reselling objects of stacking molds. What is popular in the society in the future is the object of enthusiastic pursuit of piling molds. Tickets for Hong Kong star concerts, F 1 racing cars and classic plays in the Grand Theatre in the gymnasium will go up several times to ten times after being reversed by piling molds. The "piling mould" has such a vision that it will be nervous to see which ticket, and there will be fans chasing it. They will receive a large amount in advance and then release it at a high price. They specialize in this line and earn the difference from it, which shows the smart side of Shanghainese.

Before the Mid-Autumn Festival every year, "piling molds" are very active. People who receive dozens or hundreds of mooncake tickets every Mid-Autumn Festival are worried that eating so many mooncakes will definitely hurt their spleen and stomach. He hid his identity and made a deal with the piling mould. Before the Spring Festival every year, token shopping vouchers and shopping mall cash cards are all keen objects of piling molds. According to people engaged in this industry, a piling mould can earn hundreds of thousands to hundreds of thousands in a Mid-Autumn Festival. Among them, there are several different molds, some standing on the street directly "piling" and some specialized in "piling". The latter directly deals with merchants or manufacturers, because they have already reached a tacit understanding with merchants or manufacturers and become a necessary link in the circulation of such tickets. It was probably in the 1990s that piling dies really became mature and professional.

In the first decade of 2 1 century, the "piling mould" in Shanghai was in the ascendant. The phenomenon of "piling up molds" has become a unique economic and social phenomenon in Shanghai. Some people say that it disturbs the economic order, but they stubbornly want a share in the social and economic tide. They live on the edge of law and non-mainstream society with the shrewdness of Shanghainese. They know that value is reflected through circulation, and circulation will increase value. It is closely related to socio-economic development, cultural development and social development. Social and economic life is running, and "stacking molds" may not disappear.