Hallmarking in Britain dates from 1300; no gold or silver could be sold until tested for purity and struck with the king's mark.
大不列颠从1300年开始便采用金银纯度印记；金或银要通过纯度试验和打上国王标记后才得以出售。
Hallmarking in Britain dates from 1300; no gold or silver could be sold until tested for purity and struck with the king's mark.
大不列颠从1300年开始便采用金银纯度印记；金或银要通过纯度试验和打上国王标记后才得以出售。
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