Pamphlet showing the advertising rates in the Rider and Driver magazine effective January 1, 1914. Also included is a small ad for William du Pont's Montpelier Farm horse breeding.
Special bicycle with electrically 'loaded' wheel helps staff members at DuPont's Haskell Laboratory for Toxicology and Industrial Medicine study effects of fatigue on employees. Blood pressure and pulse rate of rider are carried by wires to...
Written on back: "Front Row - C. E. Naylor, W. H. Crampton, H. G. Porch, F. H. Gordon, R. H.[?] Wolcott, D. S. Wolcott, J. F. Coburn, F. L. Shants, Breo LaPierre. 2nd Row - G. A. Cardwell, Adolph Rider, Jr., Harry Christensen, H. Kenworthy, C. T....
Written on back: "on edge of ball room, Young's Million Dollar Pier - this exhibit and convention moved to new Convention Hall in 1930. ARA and RSMA Convention and exhibit, 8 days, 10,000 to 12,000 attended." "Seated (L to R): Harry Loeb - Phila....
