Significant amounts of material on Aetna; Belmont; Hobbs, Brockunier; Northwood; United States Glass Company and its various factories. The research interest was mostly in companies in Pennsylvania, West Virginia, Ohio, and Indiana.
Similar information will appear in the J.Stanley Brothers's files on glass companies.
American pressed glass companies, with coverage of approximately 1880-1930, depending on the years of each firm's existence.
Photocopies of xeroxed typescript of excerpts from various glass trade journals: National Glass Budget; American Glass Worker; American Flint; China,Glass and Lamps; (American) Pottery and Glassware Reporter; Crockery and Glass Journal; Glass and Pottery World, etc.
Arranged alphabetically by company. CMGL created an index, and numbered each company's section (file 1, 2, etc.).