Theodolite Engineering Tool Land Surveying Precision Optics US Made Copper Brass

This old, bubble level - a poor man's theodolite - an early precision engineering surveying instrument was made by the once famous E. Brown & Son, Mathematical Instrument Makers located at the time at No. 27 Fulton St, Newyork N.Y. in about 1900. This optical instrument has two major copper assemblies, and one other copper part. All is stored in its compartmented custom made original wooden storage container. The entire set weights 20 pounds, including the case. The main component is a long optical telescope, adjustable with fine threaded rock and pinion drive, with attached brass knobs. There are some scales, a liquid filled indicator tube with and air bubble and other adjustments to allow to read the various units and scales. This is a most difficult to find, technical historical collectable item. First come first serve, only one available!

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SPECIAL ONE OF A KIND INSTRUMENT Features: • Leveler Engineering Land Surveying Tool • E. Brown & Son Mathematical Instrument Makers • No. 27 Fulton St. New York • Made of Copper, Brass, Optical Glass • Made in US • Precision and quality construction • At least a hundred year old • Size: 23 L x 7 W x 6.25 H [in] - Box • Weight: 20 [lbs] with box Notes: • Older, used, useable condition • Rare opportunity for a technology collector • Price: $200 - One available • S/H included within continental US

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• Only one item available unless otherwise indicated • Click the credit card pictures left to order • • E-Mails always answered unless return e-mail is blocked