A 19th-Century oxidised brass surveyor's Y level by W. & L.E. Gurley No. 6216, the telescope with rack and pinion focusing, bubble level with graduated silvered scale, mounted on the limb by twin supports and clamps, on 4 screw tripod mounting with tangent screw adjustment, with some accessories and makers trade label, in mahogany case - 22 5/8in. (57.4cm.) wide.