The Berlin address book of 1926 contains the following entry: Louis Joachim vorm. N. Mendelsohn, Baumwollwarenfabrik, C2, Heiligegeiststraße 35.

In the address book of the city of Chemnitz from the year 1890 the following entry can be found: Elkan,Gebr. (company), Fabrik aller Arten Strumpfwaren, Geschäftsloc.: Beckerstr.9, Eg. Owner Bernh. Elkan Frankfurt am Main, Heinrich Falk and Jul. Bernh. Elkan here, Proc.: Rich. Isfried Elkan here. - Elkan Jul. Bernh., merchant, co-owner of the company Gebr. Elkan, Beckerstr.9, Eg II - Elkan Rich. Isfried Elkan, Proc. of the company Gebr. Elkan, Beckerstr.9, Eg II.

In the Jüdisches Adressbuch für Gross-Berlin - edition1931/1932 are the following entries - Horwitz Georg, SW 61, Belle-Alliance-Platz 16  -  Fleischer, Dr. Walter, Steglitz, Potsdamer Straße 17.

In 1881, Oskar Königsfeld and Richard Abraham founded the company Königsfeld & Co.– Confektions- und Manufacturwarenhandlung  in Chemnitz.After they had opened on 17 September 1881 on Holzmarkt 10.After opening their first store at Holzmarkt 10 on September 17, 1881, they opened a second clothing store at Johannisplatz 8 on October 5, 1884.On November 12, 1889, the new, elegantly furnished business premises were opened in the magnificent multi-storey building at Brückenstra&szlig 28, at the corner of Königstra&szlig.On September 16, 1899, additional business premises were a