Xuanhe Tongbao "is a year name coin minted by Emperor Huizong of Song, Zhao Ji, during the Xuanhe period (1119-1125 AD). Xuanhe Tongbao is a combination of seal script and clerical script for coins, with direct reading. The currency values include Xiaoping, Fen Er, Fen San, and Fen Wu, with differences in coin diameter. Xiaoping generally has a diameter of about 2.4 centimeters, Fen Er is about 2.7 centimeters, Fen San is about 2.9 to 3 centimeters, and Fen Wu has a diameter of about 3.2 centimeters. Emperor Huizong of Song personally inscribed the inscriptions "Chongning Tongbao", "Daguan Tongbao", and "Xuanhe Tongbao" with his unique "thin gold body". The fonts were dignified and beautiful, and the strokes were straight and handsome, earning him the nickname "iron strokes and silver hooks".