Advertisements in a variety of formats; letters, postcards, pamphlets, broadsides, clippings from magazines, stamps, and matchbook covers. Most are American and British and represent a variety of products. There are several questionnaires for patients to fill out before they are treated. A few of the companies are P. Harold Hayes, Buffalo, N.Y., who published The Hayes Bulletin; Frontier Asthma Company, Buffalo, N.Y.; The Blosser Company, Atlanta, Georgia; and the Carbolic Smoke Ball, London. Of note are a series of modern postcards for the National Asthma Campaign, UK, and by 3M Pharma for a French congress in pneumology in 1997.