A relatively late-model Sidney, this toolroom version was advertised in 1957. Though fitted with a 16-speed headstock containing herringbone gears, the rest of the lathe was of almost identical layout and mechanical design to the ordinary 14" and 16" 12-speed spur-gear headstock model offered in 1941. A number of simple cosmetic changes had been made - smoother, rounded levers on the headstock. apron and tailstock replaced the more manly "mechanical" designs previously used; the tailstock end leadscrew and power-shaft support bracket made larger; top slide fitted with step-down gearing to its feed screw and a larger micrometer dial and the switchgear was updated. As a toolroom lathe, one might have expected the makers to alter the speed range - but no, at 14 to 562 r.p.m. it was almost identical to the 1941 model's 14 to 534 r.p.m. Perhaps the optional high-speed range was different? Again, no. 25 to 1000 r.p.m. was a vanishingly small improvement on 25 to 950 r.p.m. However, for the size of lathe it was at least adequate and would, except on the smallest of diameters, have proved sufficient. The full specification is detailed in the catalog below.