Shaanxi province
Yuanyou tongbao 1-Cash Coins

Vladimir Belyav,
March 02, 2002
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Images received from S.Shevtsov

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Weight 3.12 g, diameter 22.5 mm
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Weight 3.26 g, diameter 23.2 mm

Obverse: Yuan You Tong Bao       Northern Song dynasty reign title

Reverse: Shan       Shaanxi province mint mark

Diameter 23.0 mm

Any additional information highly appreciated.
Chinese Coinage Web Site