These are photographs having a geographic relationship to Bethlehem, Pennsylvania, the company's headquarters, includes industrial views, office buildings, and city and community views. This consists of photographs of Bethlehem Iron Company, a predecessor company which merged with Bethlehem Steel Company in 1901, the South Bethlehem steel plant, and the forge specialty department there. There are views of the company’s offices which were photographed frequently, especially during periods of renovation. There are aerials of the city dated from 1958 to 1959. A noteworthy inclusion is "Bethlehem Plant Inspection, June 1927," a booklet commemorating Lindbergh's Spirit of St. Louis flight; the aircraft's forgings were made by Bethlehem.

Lou Sterner (dates unknown) was a Bethlehem Steel Corporation employee – presumably a company photographer. Hagley does not own his original glass plates, but there are copies of contact prints of various subjects. The majority of the work is company related; there are also some unidentified nature photographs and views of Lehigh University. One set of prints (which was mounted on cards by the company) has identification on the back.