I have stamps from the People's Republic of China (China), as well as stamps from Laos, Vietnam, the United Kingdom, and other countries. I have a slightly larger quantity of stamps from Vietnam and China. This set was collected by friends in Vietnam three months after the end of the Vietnam War. I have about four more volumes, but this book is the only one with a high-value stamp set. If you are a stamp collector, why not take a look? Initially, I will sell it for 25,000 yen. I plan to lower the price depending on my mood, so I appreciate your understanding.