Hollowed-out money began in the Han Dynasty, and has been cast in all subsequent dynasties. The material is mainly bronze, followed by red copper and brass, and iron is rare. Hollowed-out money is also called "Tonghua", "Linglong" "Qian" is named because its two sides have the same pattern and the front and back are transparent. Hollow money has always used mascots as the main pattern in the past dynasties. Although there is no written explanation, it can be expressed with a concise sketch technique; the phoenix plays the peony, the double dragon plays There are auspicious contents such as beads, dragons and phoenixes, flowers, birds, fish and beasts. The layout of the coins is ingenious, with round holes, square holes, and different heavy wheels. The larger ones are exquisitely crafted, quaint and colorful, and the small ones are exquisite and clear. Each has its own characteristics, which represents the ancient casting technology of my country. It is rare to get a good product. Through hollowing out the money, you can reveal ancient folk customs such as folk accessories, gifts, and paying bills. Based on the information you provide and factors such as regional price differences, if it is genuine, the price in good condition is about 500---1,000 yuan. Around RMB.