Also included are correspondence and financial records, i.e., bills, invoices, and receipts relating to miscellaneous products and services. This series consists of correspondence, legal materials, personnel materials, proposals, and miscellaneous materials. Also of note are several blueprints and drawings of a railroad engine, railroad cars, a typical track spike used in rail construction, and the Brier Hill Mine. Included is a study prepared by the Permutit Company that records the chemical composition of the Mahoning River from 1927 - 1928. This series includes catalogs, brochures, pamphlets, booklets, and flyers.
Several items relate to equipment and accessories for railroads.
These include switchstands, railway tie and safety fasteners, anchor bottom tie plates, lock-nuts, and locomotive bells. Other printed matter includes articles prepared by the National Slag Association, and a brochure that details a proposal to improve slack water navigation on the Beaver, Mahoning, and Shenango rivers. Dowflake Calcium Chloride, ca. Conley Big Terminal Spring Frog, n.d. G.L.M. Switchstand, n.d.