Lidded dental instrument tray, glass with metal frame, probably English, 1925-1950 Lidded dental instrument tray
Handpiece sterilizer flask, glass, with plated handpiece frame, German, 1930-1940 Handpiece sterilizer flask 1930-1940
Galton's whistle for testing hearing, nickel plated brass, by Edelmann Munich, 1890-1915 Galton's whistle for testing hearing 1890-1915
Bennett's dakometer, for measuring the "height of the bite", in dental prosthetic work, nickel-plated brass, cased, by Elliott Bros. (London) Ltd., 1929-1935 Bennett's dakometer 1929-1935