Throughout the Song and Qing dynasties, cash coins were important trading tools. Coins were often strung together to allow for easier counting. Our company has an incredibly large selection of coins spanning seven dynasties, enough to purchase a palace!
A grouping of 'Shao Xing Yuan Bao/Tong' (紹興元/通寶) and 3 cash coins cast from AD by Emperor Gaozong (高宗) AD) of the Southern Song (南宋) Dynasty. Southern Song coins are fewer than those of the Northern Song. These are from my personal collection.