1888/en: Unterschied zwischen den Versionen
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| − | + | *On [[January 1|1st January]], [[1888/en|1888]], Germany introduced a standard system of identification of the purity of precious metals. | |
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Version vom 10. August 2011, 00:44 Uhr
| 1887 << 1888 >> 1889 |
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- On 1st January, 1888, Germany introduced a standard system of identification of the purity of precious metals.