published in: Gebrauchsgraphik / International Advertising Art 1941 / page 14 Frenzel & Engelbrecher "Gebrauchsgraphik" Verlag Berlin SW 68, Wilhelmstr. 148 Sole representative for the U.S.A.: The Book Servive Company, 15 East 40th Street New York City Sole Representatives For U.S.A.

published in: Gebrauchsgraphik / International Advertising Art 1941 / page 14 Frenzel & Engelbrecher "Gebrauchsgraphik" Verlag Berlin SW 68, Wilhelmstr. 148 Sole representative for the U.S.A.: The Book Servive Company, 15 East 40th Street New York City Sole Representatives For U.S.A.

published in: Gebrauchsgraphik / International Advertising Art 1941 / page 14 Frenzel & Engelbrecher "Gebrauchsgraphik" Verlag Berlin SW 68, Wilhelmstr. 148 Sole representative for the U.S.A.: The Book Servive Company, 15 East 40th Street New York City Sole Representatives For U.S.A.

published in: Gebrauchsgraphik / International Advertising Art 1941 / page 14 Frenzel & Engelbrecher "Gebrauchsgraphik" Verlag Berlin SW 68, Wilhelmstr. 148 Sole representative for the U.S.A.: The Book Servive Company, 15 East 40th Street New York City Sole Representatives For U.S.A.