Second Order Implementing the Order of October 26, 1939 concerning the Introduction of Forced Labor for the Jewish Population of the General Government issued by the Higher Police [Germany / Occupied Poland]: “Article 1 – All Jewish residents in the territory of the General Government from the age of 14 to the age of 60 are generally subject to forced labor. The duration of this forced labor is usually two years. It may be extended, if during this time its educational purpose should not be achieved. […] Krakow 12 December 1939 – The Higher SS. – and Police Lieutenant in the General Government, Krueger.”
Yad Vashem Archives, the Weichert Collection, file no. 1, page 40, Accessed on 1/24/2016, Translated by Franziska Wagener