Browse by Instrument
 

Alidade
Altitude and Azimuth Instrument
Chain, Tape and Base Bar
Compass, Pocket
Compass, Railroad
Compass, Solar
Compass, Surveyor's
Cross, Surveyor's
Electromagnetic Distance Measurement (EDM)
Gradienter
Graphometer
Heliotrope
Holland Circle
Level
Range Finder
Repeating Circle
Theodolite
Transit
Transit and Equal Altitude
Transit, Geodetic
Universal Instrument
Vertical Circle
Waywiser
Zenith Telescope
Miscellaneous

Heliotrope

Nineteenth-century surveyors and geodesists used heliotropes to signal from one station to another. The instrument works by reflecting sunlight from a plane mirror.

Collection:

Fauth (Steinheil type)
Fauth (telescopic)