Orrery patented 1897 (No.578,108 USA) and 1910 (No.958,139 USA) by Alexander Laing and manufactured by Laing Planetarium Company, Detroit, Michigan. Orrery planetary model by the Laing Planetarium Company, 1910-1920 1910-1920
2 close up lenses for Argus 35mm camera, approximately 1 diopter in metal mount for 23mm lens mounts. International Research Corporation. Argus portrait and copying lens
Electro-Voice 643 Cardaline shotgun microphone, manufactured by Electro-Voice Inc, about 1963. Electro-Voice 643 Cardaline Shotgun Microphone circa 1960
Ford 22 h.p. model T motor car engine c.1920, sectioned, on metal stand. Ford 22 h.p. model-T motor car engine, sectioned, mounted on stand 1915-1925
Magnetic Data Storage Drum by Bryant model 10384, 1964. (two examples) Magnetic Data Storage Drum by Bryant model 10384 1964
Instruction poster 'How To Use Battle Creek Health Builder', illustrating a chart of different exercise options depending on the symptoms, 1925-1935. Instruction poster, 'How To Use Battle Creek Health Builder' 1925-1935
Battle Creek Health Builder, Oscillo-Manipulator type MS-4, by the Sanatarium Equipment Co., Michigan, US, 1925-1935 'Battle Creek Health Builder', exercise machine, Michigan, United States, 1925-1935 1925-1935
A black and white photograph entitled 'Sterling Heights, Michigan' taken by Arthur Grace, on 13 September 1988. From the Impressions Gallery exhibition 'Politicians', 16 January - 13 March 1993. Sterling Heights, Michigan 1988-09-13
35mm camera 24 x 36mm. Fitted with a F.4.5-18 anastigmat lens in spring loaded telescopic mount with two position location for infinity and 6-18 feet. Everset shutter 225/50/100/200/B/T. Fitted with a direct vision optical finder (front lens is missing built in extinction meter, 6 densities with sliding pointer. Calibrated in Weston speeds, automatic frame counter. No 62095. International Research Corporation. Argus Model A2 1939