Department of the Geographer

Army of the United States, 1777-1783

Sections

Scientific and Draughting Instruments

Instruments for Finding Locations and/or Bearing

Pocket Compass
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Circumferentor
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Plane Table and Alidade
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Theodolite
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Semi-Circumerentor
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Wye Level
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Octant
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Support Mechanisms for Instruments

Three Legged Staff
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Jacob's Staff
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Instruments for Measuring Distance

Gunter's Chain and Chaining Pins
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Perambulator
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Drawing and Writing Instruments

The Pocket Case
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Steel Nibbed Pen
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Compass and Dividers
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Protractor
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Scales and Sectors
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Pantograph
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Quills, Ink, Pounce, and Paper
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Optics

Reflecting Telescope
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Spyglasses
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