Huang Song Tong Bao (1039-1054). Empereur Ren Zhong (1022-1063), Northern Song dynasty

1-cash seal script. Small TONG variety with rosette hole. 24.65mm/3.24g VF - Price 2 USD @ dong_hua_zhai's Coins and Antiques

Chinese coins from Northern song dynasty (AD960 - 1127) are famous for it's beautiful Chinese calligraphy and fine quality. One interesting feature in  this period is the matched coins. 2 coins in different calligraphic styles but in same period title, all dimensions, and even composition of alloy make a perfect pair .  I.e. Li script vs. Seal script, Regular script vs. Seal script.