Grouping of advertising artwork, including original watercolors, lithographs, and photos, early to mid 20th century. Includes the following: A large portfolio describing products for the "National Folding Box Company", possibly a salesman's book for presentation to customers - includes some original artwork, an audit of the company's Newskin packages with sample of packaging, unused box for "Supreme Court Brand Coffee", Air view photo of National's plant in New Haven CT, photos of the plant's machinery, photos of men and women designing and making packages, loading dock with tailor and delivery truck, etc., circa 1930; the original W/C brochure for "U16 Floating Comfort" theater seats, circa 1930; scrap book containing many printed samples of advertisings, one dated 1929, including Christmas cards; etc.