Warner & Swasey, founded in 1880, used to be a major manufacturer of machine tools, instruments (including astronomical telescopes!), and special machinery. You can find most of the company's history on its Wikipedia page: en.wikipedia.org/wiki/Warner_&_Swasey_Company. This particular location used to be a major factory of the company and employ thousands of workers. It however was shut down in 1985 and has been vacant since then.
Shot with a Mamiya M645 and Ilford Delta 400 film.