Explorer's Alidade

W. & L.E. Gurley, Troy, New York


about 1950

10-in. telescope with side mounted focus and screw eyepiece. 4-in. detachable striding level fits on base; 2-in. radius, 90-degree Beaman Stadia Arc on left side of telescope; 4 1/2 in. trough compass, all black crackle finish, serial no. 491,149

Overall: 11 3/8 × 3 1/4 × 13 in. (28.9 × 8.3 × 33 cm)

Case: 5 1/4 × 5 1/4 in. (13.3 × 13.3 cm)

Hood Museum of Art, Dartmouth College: Allen King Collection of Scientific Instruments, Hood Museum of Art, Dartmouth College



North America, United States


20th century

Object Name

Scientific Instrument: Surveying


Scientific Instrument

Scientific Instrument - Surveying

Not on view

Published References

Skerritt, Cat. of the Charles E. Smart Collection of Antique Surveying Instruments (1996), pp. 42-43.


Department of Earth Sciences, Fairchild Hall, Dartmouth College; given to the Allen King Collection of Scientific Instruments, October 2007.

This record was created from historic documentation and may not have been reviewed by a curator; it may be inaccurate or incomplete.

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