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| | chinese coin guide - ancient knife and spade money |
 | | Some Zhou coins bear inscriptions indicating denominations, and when their weights are calculated against these denominations, they appear to have been cast to a standard of 0.5 grams per shu (see Wang, Early Chinese Coins, pages 138-139), or about 77% of the official standard. |
 | | This suggests a system of seniorage, similar to that often used in medieval Europe, where coins were struck to lower weight standard relative to their circulating value, with the difference (called seniorage) making up the cost of minting and sometimes a small profit to the minting authority. |
 | | For the time being, we will assume that a shu of 0.5 grams is the correct standard when applied to normal, full-weight, ancient Chinese coins. |
| www.calgarycoin.com /reference/china/china1.htm (7490 words) |
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