Business records (correspondence, product information, and personnal records), manufacturing data, employee newsletters, social activity programs, and photographs of batteries, machinery, social activities, and Fremont city scenes, reflecting company history and insights into the labor force, production, marketing, and distribution of carbons and batteries. Includes manufacturing notes (1913-1917); company histories; newspaper clippings chiefly concerning employee anniversaries, retirement programs, etc.; Christmas party programs (1929-1985); payroll books (1890-1891); building and floor plan of Factory H, National Carbon Company; and materials on standard safety practices on mechanical safety and fire protection.