Not a violin shop. According to the Google, Targ & Dinner was a musical instrument distributor, similar to Bruno, Wurlitzer, Lyon & Healy, etc. It was established in Chicago in 1920, and it operated until at least 1970. Roy Ehrhardt's "Violin Identification and Price Guide, Book 2" reproduced the violin pages from Targ & Dinner's 1941 and 1949 catalogues. In addition to Jan Kriml, the offerings include K. Meyer, Gustav August Ficker and Jackson-Guldan. They also carried other musical merchandise such as guitars, banjos, amplifiers, drums, accordions, microphones, etc.