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.

William Sellers & Co. was an iron works that manufactured machine tools used for turning, planing, shaping, drilling, boring, or cutting metal or wood. The company was founded in 1848 as Bancroft & Sellers by mechanical engineers and inventors Edward Bancroft (1811-1855) and William Sellers (1824-1905). The records consist of five volumes, as well as correspondence from William Sellers and the Sellers firm.