細節
A privately-made geometric chuck
of bronze with graduated, screw-adjusted slide, locking detent for nose-wheel, thirteen spare change-wheels and mahogany baseboard with bronze-bushed centre recess -- 5in. centre height, mandrel nose 1in. x 8 t.p.i.
of bronze with graduated, screw-adjusted slide, locking detent for nose-wheel, thirteen spare change-wheels and mahogany baseboard with bronze-bushed centre recess -- 5in. centre height, mandrel nose 1in. x 8 t.p.i.