Japan  

In Japan the hallmarking of objects made of precious metals was introduced in 1928 by the ministerial decree No 12 of 29 June. It was revised on 18 May, 1954.  The permitted purity is shown in thousandths in the following values: 1000, 950, 925, 900 and 800/1000. Silver objects must be marked according to the following example:  1.  makers mark  2.  control mark  3.  hallmark showing fineness

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