Regulation on the Management of Gold, other Precious Metals, Jewels, Pearls and Goods Manufactured therefrom issued by the Governor – General [Germany / Occupied Poland]: “Article 8 – (1) For Jews and Jewish businesses the trade with objects referred to in Article 1 [goods and raw materials of gold or silver, precious metals, gems, pearls, etc., comment of the translator] is prohibited. […] Krakow 12 September 1941 – The Governor – General for the Occupied Polish Territories, Frank.”
Verordnungsblatt für das Generalgouvernement, no. 87, page 539. Accessed on 2/2/2016, Translated by Franziska Wagener