File consists of reference photographs of the Model 43 Transmitter and its component parts, and one memorandum. The photographs are labeled according to the part and view.

File consists of 33 photographs of employees (both men and women) at work on production lines and operating machinery. Many photographs depict production during World War II. File also includes 2 photographs of senior personnel in a meeting room, including one with Arthur B. Pollock. Some photographs include identification on verso.