Song Yuan Tong Bao 1-cash coin, bar on reverse left Cast under rule of the 1st emperor Tai Zu of Northern Song Dynasty (AD960-1127) during Jian Long period (AD960-976). Large issue, 24.8mm / 3.24g, small hole at 7 o'clock. 8 USD @ dong_hua_zhai

Song Yuan Tong Bao 1-cash coin, bar on reverse below Cast under rule of the 1st emperor Tai Zu of Northern Song Dynasty (AD960-1127) during Jian Long period (AD960-976). 24mm / 2.76g, a small hole at 11 o'clock - 6 USD @ dong_hua_zhai