Portable apparatus for continuous administration of Pentothal, Major Dennis Dunnill's design, by Down Bros., 23 Park Hill Rise, Croydon, England, 1935-1945. Portable apparatus for continuous administration of Pentothal 1935-1945
Ethomemeter, three pieces, in box, patented 1916, English(?), 1916-1977 Ethomemeter, three pieces 1916-1977