3 items have been found that match your search request.
|| Parts Manufacturing Company 3 dimensional airplane part
Parts Manufacturing Company in Greenfield, Massachusetts, produced finished parts for Pratt & Whitney Radial Aircraft Engines.
|| Surveying Instrument
A theodolite is a surveying instrument used to measure horizontal and vertical angles.
|| 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.