The image shows a black and white drawing of a surveying instrument, a theodolite, on a white background.
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The image shows a black and white drawing of a surveying instrument, a theodolite, on a white background. It is a machine with a cylindrical body, a handle on the side, and a spindle at the top. The handle is used to adjust the angle of the object, while the spindle is used for measuring the depth of the field.
