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1712 J. Browne tr. P. Pomet et al. Compl. Hist. Druggs II. ii. xi. 337/1 They grind this Brass over and over again, 'till it becomes an impalpable Powder, which they sell under the Name of German Gold in Powder.

1808 New & Compl. Amer. Encycl. IV. 142/2 The German gold powder, prepared from the Dutch gold leaf in the same manner, is generally used; and when it is well scoured with varnish, answers the end in japanners gilding as well as the genuine.

1826 London Mechanics' Reg. 12 Aug. 256/2 Have next some powder of German gold in a shell, and in another some varnish... For saving expense, you may, instead of the German gold, take some fine bronze, which is considerably cheaper.

1861 D. Young Demonstrative Transl. Sci. Secrets 85 Dutch or German Gold. A gilding powder is sometimes made from Dutch gold, which is sold in books at a very low price. This is treated in the same way as the real gold leaf in making the true gold powder.

1914 Fortnightly 2 Nov. 767 Now there are not half a dozen gold-beaters to be found between John-o'-Groats and Land's End. ‘What is to be done without German gold?’ began to whimper these sturdy patriots.

1974 J. Needham Sci. & Civilisation China V. ii. 223 Other alloys..would have been possible for the medieval Chinese alchemists... Also..possible would have been the ‘German’ gold which uses about 5% antimony.