A portable surveying tool consisting really of a drawing board and a ruler installed on a tripod and regularly picture and map topographical details.
A particular form of instrument used by surveyors in mapmaking.
a significant instrument of topographical surveying, comprising a drawing-board mounted upon a tripod, and with the capacity of becoming leveled and turned-in azimuth, often additionally having two horizontal movements of interpretation.
In mining, an inclined dining table or surface of panels on which ore is dressed; a frame, or framing-table. In addition plain-table.
surveying tool comprising a drawing board and a ruler being mounted on a tripod; always picture and chart topographical details