Gauge Collection

Spectroscope (c. 1860) by Bunsen and Kirchhoff, published in 1880
Spectroscope by Robert Bunsen (German chemist, 1811 - 1899) and Gustav Robert Kirchhoff (German physicist, 1824 - 1884). A spectroscope is an optical device

Calipers
Illustration of a Calipers

Gauges
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Man With Clipboard and Gas Equipment
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The Coranada Locomotive
Illustration of the Coranada locomotive built for the 20 inch gauge railroad by H. K. Porter and Co of Pittsburgh, Pennsylvania circa 1890. (Photo by Kean Collection/Getty Images)

Vapor pump with vertical boiler
Antique illustration of a vapor pump with vertical boiler

Vertical wall steam plunger
Illustration of a Vertical wall steam plunger

LIfting Rail Cargo
Illustration of the transferring of goods from the broad gauge to the narrow gauge railway at Gloucester, England circa 1850. (Photo by Kean Collection/Getty Images)

Illustration, speedometer showing miles per hour and odometer showing miles travelled

Illustration of rain gauge measuring rainfall levels

Illustration of voltmeter attached to battery, showing electromotive force on dial

Illustration of Faradays rotary motor with bar magnet near spiral of wire connected to meter with gauge

Digital illustration of profile gauge

Digital illustration of a speedometer

Illustration of ammeter

Illustration of voltmeter

Dynamometers, wood engravings, published in 1880
Historical Dynamometers from the 19th century by Rieger and Louis-Guillaume Perreaux (French Inventor and engineer, 1816 - 1889)

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