"Kaiqing Tong Bao" . "Jiatai Tong Bao" . "Shaoxi Yuan Bao" . . "Qiandao Yuan Bao" . "Coins from the Southern Song dynasty" . "Dasong Yuan Bao" . "Zhi Ping Yuan Bao" . "Xuan He Tong Bao" . "Southern Song dynasty coinage" . "its coinage" . . . "Yuan Feng Tong Bao" . "Chunyou Yuan Bao" . "Southern Song era coins" . "Song's" . . "Sheng Song Yuan Bao" . . . "Da Guan Tong Bao" . "Longxing Yuan Bao" . . "Shaoxing Yuan Bao" . "Jingding Yuan Bao" . "Xi Ning Yuan Bao" . "Chong Ning Tong Bao" . . "Song\u2019s" . "Jiaxi Tong Bao" . "Shao Sheng Tong Bao" . "Xuan He Yuan Bao" . "Xianchun Yuan Bao" . "Duanping Yuan Bao" . "Kaixi Tong Bao" . . . . . "Qingyuan Tong Bao" . "Zhi Ping Tong Bao" . "Chong Ning Zhong Bao" . "Southern Song dynasty cash coins" . "Yuan Fu Tong Bao" . "Song coins" . "Shaoding Tong Bao" . "that were circulating at the time" . "Chunxi Yuan Bao" . "Southern Song dynasty cash coin" . "inscriptions of Southern Song dynasty cash coins" . "Southern Song dynasty period cash coins" . "Southern Song dynasty coinage" . "Xi Ning Zhong Bao" . "Yuan You Tong Bao" . . "Jiading Tong Bao" . "Shao Sheng Yuan Bao" . "Shaoxing Tong Bao" . "Huangsong Yuan Bao" . "Zheng He Tong Bao" . "Jianyan Tong Bao" .