One inscription on this polygraph reads “DECEPTOGRAPH / PATENT APPLIED FOR / C. H. STOELTING CO. / CHICAGO, 24 ILL.” Another reads “Blood Pressure Apparatus.”
Ref: Clarence D. Lee, The Instrumental Detection of Deception (Springfield, Ill., 1953), pp. 65-67.
One inscription on this device reads “KEELER POLYGRAPH / U.S. PAT. NO. 1,788,844 OTHERS PENDING / MODEL 302C / SERI-AL NO. 3020331 / ASSOCIATED RESEARCH INCORPORATED / CHICAGO, ILL.” Another reads “ASSOCIATED RESEARCH / Incorporated / CHICAGO / ILL / MODEL NO. 302C / SERIAL NO. 3020331 / MADE IN USA.”
Leonarde Keeler (1903-1949) developed and promoted polygraphs, first in California and later in Chicago. Associated Research, Inc., a Chicago firm established in 1936 by James F. Inman (1902-1959), repaired and manufactured electric instruments.
Ref: Leonarde E. Keeler, “Apparatus for Recording Arterial Blood Pressure,” U.S. Patent 1,788,484 (Jan. 13, 1931).
“Keeler, Famed As Inventor Of Lie Test, Dies,” Chicago Tribune (Sept. 21, 1949), p. 30.
Orange cardboard box containing one yard of corrosive sublimate gauze for field use in World War I. Typed on the box in black ink is: "B&B Corrosive / Sublimate Gauze / Compressed / 1 Yard / Prepared by / Bauer & Black / Chicago, U.S.A / Contract May, 1917." Corrosive sublimate, also known as mercuric chloride (HgCl2), was used as an antiseptic during the war.
A poster with an abstract image of Mexican Revolutionary, Emiliano Zapata. The poster is advertising a dance benefit for Cesar Chavez's strikers with the United Farm Workers.