Presentation of Edward P. Brown Pyrometers to Museum of History and Technology
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Presentation of pyrometers, developed by Edward P. Brown for measuring high temperatures of industrial processes, to the Museum of History and Technology by Minneapolis-Honeywell's Brown Instrument Division, with Richard P. Brown, the inventor's son, and Secretary Leonard Carmichael.
From back of photograph: "Examining an 1884 model, which took much of the guesswork out of steel-making nearly a century ago, are Richard P. Brown, of Philadelphia, the inventor's son, and Dr. Leonard Carmichael, Secretary of the Smithsonian Institution. On the table is a modern version having automatic control action."
Smithsonian Institution Archives, Record Unit 95, Box 57, Folder 16, Image No. SIA_000095_B57_F16_001
Smithsonian Institution Archives Capital Gallery, Suite 3000, MRC 507; 600 Maryland Avenue, SW; Washington, DC 20024-2520
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Black-and-white photographs
SIA RU000095 [SIA_000095_B57_F16_001]
Gelatin silver prints; 9 x 7;