Excuse me, when was this wallet? What is it written in?

This is Taihe Chongbao. Belongs to gold coins.

Taihe Chongbao is one of the ancient Chinese coins. Jin Zhangzong, the Great State of Jin, was cast in Jingtai, Hongyan for four years (A.D. 1204). Qian Wen's seal script, read directly, has two types: Big Ten and Small.

Taihe Chongbao is superior in copper, vigorous in posture and exquisite in production. The face writing "Taihe Chongbao" is a jade rib seal script, which is read directly and written by the calligraphy and painting master party. The font is pure and elegant, beautiful and generous. There are many formats, such as large and small samples, wide edges and narrow edges, with a diameter of 4.5 ~ 5.2 cm and a weight of1~ 20g. There is no text on the back, but there is money on the back. Seal script and treasure worship have been handed down from generation to generation, but because it belongs to Dameiquan, it is still deeply loved by Tibetan money collectors.

You can refer to the introduction of Baidu Encyclopedia.