This maker of grinders—especially bench grinders—was in business from about 1916. The founders were apparently William A. Marschke and Fredrich W. Marschke, and the company was located in Indianapolis. In 1926 the company was acquired by Black & Decker. In 1931 the Vonnegut Moulder Corp. bought the rights to the Marschke line of grinders and buffers. Another source, "Modern Machine Shop" on Google Books snippet view, said it occurred in 1935.

Information Sources

• Patent records provided information on the names of the founders, the years of operation, and the connection with Black & Decker; a 1931 patent was granted to B&D co-founder Alonzo Decker and assigned to Marschke Manufacturing Co.; Less than two years later, another patent was assigned to Marschke Manufacturing Co. of Towson Maryland. The inventor was Walter Stumpf, who had several patents assigned to B&D both before and after that 1933 patent.
• A now-deleted webpage for G and P Machinery (successor to Vonnegut Moulder Corp.) provided the information on Vonnegut's buying the rights to the Marschke line of grinders and buffers.
• "Modern Machine Shop," Vol. 8, p. 53, 1935 stated, "An announcement about Van Dorn, Black and Decker, Marschke Grinders and Buffers, — of interest to machine tool dealers as well as to all industries. VONNEGUT MOULDER CORPORATION has acquired the exclusive rights, including...."