“Rescript Regarding the Prohibition [for Jews] to Trade with Yarn and Silk” issued by Duke Fredrick William of Prussia [Duchy of Prussia / Present-day Germany and Poland]: “After the Mayor and Council of Bielefeld have complained to us that Jews are selling (both publicly and in secret) yarn, linen, silk and junk items – in no less to the detriment of the local citizens who lose wages in this way – we are ordering that this is to be investigated immediately and that except for the Jews Marcus Spanier and Solomon Reinbach (…) no other Jews is to be tolerated in the city claiming to be under special protection. Those still found in the land without legitimate reasons are to refrain from actions that would be in violation of the law or should expect to have their merchandise confiscated.”
Stern, Selma: Der Preussische Staat und die Juden, Vol. 1. (The Prussian State and the Jews) (1962) p. 69, Berliner Staats Archiv R64 n 178 a., Accessed online; Researched and Translated by Ziba Shadjaani 12/02/2015