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Search Results for: Surveying & Navigational Tools & Equipment

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front Parts Manufacturing Company 3 dimensional airplane part
c. 1940
Parts Manufacturing Company in Greenfield, Massachusetts, produced finished parts for Pratt & Whitney Radial Aircraft Engines.
front Surveying Instrument
c. 1800
A theodolite is a surveying instrument used to measure horizontal and vertical angles.
front Astronomical apparatus

Edward Hitchcock (1793-1864) created this astronomical apparatus, customized to the latitude and longitude of Deerfield, Massachusetts, to allow him to calculate eclipses when he was preceptor of Deerfield Academy between 1816 and 1819.


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