Round coin Square Hole

[GTI2000]

I put this coin in a 2x2 holder hope you can see the writing brass looking in color
1 1/4" diameter 3/8" hole in center.

 

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[LJHanley06]

Chinese Cash coin...maybe Souther Sung Dynasty 12th-13th Century...Tuan P'ing

 

[Montana Jim]

Chinese Cash coin...maybe Souther Sung Dynasty 12th-13th Century...Tuan P'ing

I agree... as far as I can tell

DYNASTY: SOUTHERN SUNG (1127 A.D. to 1279 A.D.)
REIGN: Tuan Ping (used from 1234 to 1236)

Value: I cannot determine... I hope someone else can.