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Roberson Thompson indicator, 1899
Order an ImageThe Roberson Thompson indicator was designed and built by John Roberson of south Seattle. It was used to measure steam consumption of steam engines.
ID Number: 1964.3433.1
Date: Circa 1899
Physical Description: 1 Instrument, Mechanical; chrome, metal, wood, paper, cotton; Case: 7 in.H x 9.5 in.W x 10.5 in.D (closed)
Place Made: United States of America, NEW YORK, New York
Credit: MOHAI, 1964.3433.1