object
Graphometer
A named semicircular surveying instrument with alidade for measuring horizontal angles. Not a theodolite alone, not a circumferentor, and not a published quadrant alone.
Also known as Semicircle · Surveying graphometer
object
A named semicircular surveying instrument with alidade for measuring horizontal angles. Not a theodolite alone, not a circumferentor, and not a published quadrant alone.
Also known as Semicircle · Surveying graphometer