The Central District and Printing Telegraph Company (CD and PT) was the Pittsburgh business community's first local printing telegraph network. This item is an 1878 Pittsburgh, Pennsylvania, telephone subscriber list labeled, "Telephone Room copy which all corrections and additions must appear." The booklet's entries consist of business or personal name, business type or residence, and street address.

Ingersoll-Rand Company is a provider of industrial equipment. Its main products are compressors, blowers, and pumps. This small collection consists of a disparate assortment of brochures, booklets, manuals, correspondence, directories, and photographs that belonged Edward H. Fry (1915-1985), the supervising engineer for the Cameron Pump division at the Phillipsburg Plant. The materials date from 1936 to 1979 and have been arranged in chronological order.