Yunnan White Copper Large 10 Cash Tong Zhi Zhong Bao Bao Yun Mint China
Tong Zhi Zhong Bao
Rev: Manchurian inscription "Bao Yun"
Yunnan Province Mint !
One Coin Value 10 Cash
Material: White Copper ( Yunnan White Copper 雲白銅)
Weight: 15 grams; Size: 37 mm
Emperor MU TSUNG
T'ung Chih also issued some larger denomination coins in both brass and copper, in 4, 5 and 10 cash denominations. The 4 and 5 cash are rare and seldom seen, but the 10 cash turn up fairly often.
"BOO YON" (Yunnan mint). The Manchu mint name translates to Pao-yun.