Corporate records, photographs, illustrations, audio/visual materials. The bulk of the collection consists of documents dealing with the business affairs, research and development, manufacturing and marketing of products. Including minutes of executive board meetings, financial and accounting records, day files of senior management, correspondence, annual reports, patents, sales and marketing materials, research and development materials, catalogs and price lists, product specifications, facility blueprints, and memorabilia. Approximately 300,000 photographs and 2,000 artifacts support the written documentation.