| The Jin dynasty
Emperor Shih Tsung
Character Yu on the rev. -
probably ch.Yu taken from the cyclical year signs Chi Yu of a.d.1189, when coin casted.
Circle on the obv. beetwen Ta and T'ung
Characters on the rev.Shen and Yu
New made fantasy coin
Also known coins Ta Ting T'ung Pao, casted in Vietnam in a.d.1369 during Emperor Ying Tsung. But usually Vietnamese coins have little size and are very thin.
1. Are there in literature coins with circle on the obverse as on the third item?
2. I found large fourth item (obverse) only in the book CM - Chinesische Munzen". Combination of characters is uncleared.