50 Jahre Accumulatoren-Fabrik Aktiengesellschaft 1888-1938.
Berlin: 1938. First edition. Original Cloth. Quarto, pp. 251 with dozens of b/w photographs. Scarce. Business history of the firm that manufactures Vorta batteries. The fiftieth anniversary unfortunately fell in 1938 and was tainted by Nazism, which is reflected in some of the images. More