Kai Yuan coin, Tang Dynasty (841-907), bronze. Starting from 841, the name of the mint will be introduced on the reverse, as well as hundreds of small variations in the calligraphy and in the presence of moons, lines and dots in different positions with respect to the central hole.
D/ Kai Yuan Tong Bao (inauguration currency - ABDS); lishu(administrative) script.
R/ Jing (stands for Jingzhao, Chang'an prefecture (now Xi'an), above the central hole; waning moon below the central hole.
In the Museum since 1911.
