Ask the great god to identify what ancient coins this is. thank you

This coin of yours is an old real coin, which can open the door; It is a coin seal script "Daquan Fifty" in Wang Mang's period, which belongs to a common format variety and has a certain amount of existence. The general auction price in the market with good appearance is around 100 yuan; Above this price, it can be supplied in large quantities in the market; If you like, it can be a variety collection; Compare it with my collection!