The Phoenix Steel Company began in the late eighteenth century as a manufacturer of cut nails. It later became a major producer of railroad rails and iron and steel structural members. Their records include minutes (1856-1929); stock ledgers; brief of title papers and property maps; legal and financial correspondence and tax papers; account books; and a works diary.

Charles William Feil Sust (1885-1947) and his son Carl William Sust (1914-1996) were employees at William Sellers & Co. Both worked as sheet metal workers in the 1930s and 1940s. William Sellers & Co. was an iron works that manufactured machine tools used for turning, planing, shaping, drilling, boring, or cutting metal or wood. This small collection is primarily photographs of machine tools manufactured by the William Sellers & Co. in the 1930s and 1940s. There are several photographs of various rooms and shops at the company, three include Charles Sust. There are a few publications and blueprints, as well as employee pins.