In 1988, there was an old man on the front of the 1,000 yuan, and there was something in MIL INTIS. MIL INTIS (1,000 INDIS) was a Peruvian currency with a face value of 1,000 INDIS; in China, Peruvian currency was a non-free currency and had no price. It cannot be exchanged or used, so the scammers exchange it with ordinary people in the name of Hong Kong dollars, British pounds, Canadian dollars, and US dollars!