R. Barnik Artistic Lithography, Ltd., Berlin
Р. Барник, о-во. с ограниченной ответственностью. Художественная литография, Берлин.
R. Barnick Artistic Lithography was a Berlin printing firm that had been in existence since about 1875. It produced lithographic posters, labels for bottles, and an array of graphic ephemera. Since the printing house was located in Berlin's eastern sector, after World War II, the location of R. Barnik Artistic Lithography shifted to East Germany.
Stach, B., & Morsbach, H. (2011). Posters of GDR films 1945-1990. Berlin: De Gruyter. (R. Barnik cited multiple times as a printer in East Berlin)
Aulich, J., & Sylvestrová, M. (1999). Political posters in Central and Eastern Europe, 1945-1995: Signs of the times. Manchester: Manchester University Press. (East German posters by R. Barnink cited)