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Level, Surveyor's

Object Name:
Level, Surveyor's
Object ID:
1975.035.04
Creator:
Davis, Leonard L. (1832-1901)Manufacturer
Place of Origin:
Springfield, MA
Date:
1867-1875
Description:
Adjustable spirit level. Brass, glass, and steel. Milled steel stand upon which is fastened a steel ring in which there is a brass ring with a level. This is incremented in three-degree marks. Inside inner ring is a level tube that rotates 90 degrees. Set screw on top locks inner level ring. Steel brackets that hold protractor are painted black and are striped in gold on both sides. On either side of the set screw are two adjusting flathead screws that look like ears, on top of circular part of round body. On outer brass ring are three slightly rounded, slotted steel screws; probably hold brass ring and level portion in place. On semi-circular brass portion, round-head, slotted steel screw holding down steel reference point. On same brass portion, three rows of text. Shallow, elliptical viewing slot with flat top surface and curved bottom surface for seeing bubble in glass vial. Below viewing slot stamped: "L. L. DAVIS". Below that: "ADJUSTABLE SPIRIT LEVEL". At bottom: "PAT. SEP. .... 17. 1867.", curved downward. At top of adjustable portion, rectangular viewing level cut into brass; semi-circular bulges at either side that are slightly narrower than the rectangular cutout. Third viewing slot on opposite side of moveable section, shaped same as its counterpart. Outer brass ring has division marks all the way around its inner perimeter. Graduated marks enumerated from zero to 90 to left and right sides. Stamped with numbers "15, 30, 45, 60, 75, 90".
Material:
Metal
Brass
Steel
Glass
Dimensions:
H-2.5 W-0.9 L-6 inches
Provenance:
Carried and used by John Burgin Haselton (1837-1908).
Credit Line:
Gift of Rachel R. Wolford
Subjects:
Levels
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