First Regulation Implementing and Supplementing the Carrier Pigeons Law Issued by Reich Minister of Interior [Germany]: “[…] Article 1 (1) The permission (to keep carrier pigeons) won’t be granted to Jews. […] Berlin 29 November 1938 – The Reich Minister of the Interior Frick.”
1938 Reichsgesetzblatt I, page 1749. Accessed online; Translated by Franziska Wagener 10/26/2015