lathe for turning objects
a piece of wood or bone held between two points and rotated, a cutting tool (chisel) is then pressed against it to produce a rounded object of circular cross section like a chair leg, or a knife grip. the illustration is the earliest known inscription found in ptolomeic egypt. the rotation is by a cord wrapped around one end and the free ends are pulled to spin the object alternately clockwise and counter-clockwise. similar lathes are still in use in parts of asia. see 'pole lathe' in google. this is 'turning'.
another one, foot operated
(i'm a degreed mechanical engineer, so my mind is geared to know these things
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