Ordinance, issued by the government of Prussia [Present-day Germany]: “All Jews in the Grand Duchy of Posen are free to visit annual markets in Silesia; however, they are required to submit proof of their being quality Prussian subjects, as well as their good moral character, and also their business license, by way of attestations issued by their local police department. Such attestations may become part of the passports that will have to be issued.”
Kletke, M.G. (ed.). Organisation des Judenwesens im Großherzogthum Posen (Organization of Jewish Affairs in the Grand Duchy of Posen). Heymann: Berlin, 1843. Page 285. Researched by Dominik Jacobs 4/13/2020