Large Chinese cash coins with blank reverses tend to be from the Northern Song dynasty.
Some googling indicates that this particular type appears to be a Ch'ung-Ning T'ung-Pao, 10 cash, S-621, 1102-6 AD.
A weight of 8.64 grams is about right for the issue (maybe a bit on the low end), but a diameter of 45 mm is far too large - you sure you didn't mean 35?
Some googling indicates that this particular type appears to be a Ch'ung-Ning T'ung-Pao, 10 cash, S-621, 1102-6 AD.
A weight of 8.64 grams is about right for the issue (maybe a bit on the low end), but a diameter of 45 mm is far too large - you sure you didn't mean 35?






















