Mounted on a headstock-end support that allowed the lathe to be swung, this Geneva-style watchmakers lathe has a 35 mm centre height and accepts around 100 mm between centres. For its type it has a number of slightly unusual features; instead of a flat section to the bed like most Geneva-type lathes, this has a keyway to locate the carriage and tailstock; the compound slide-rest assembly carries a miniature 4-way toolpost; the tailstock can be set over for the turning of slight tapers and the headstock spindle appears to take both draw-in collets and a screw-in chuck mount. The aluminium headstock pulley is, obviously, not the original.
When was the lathe made? A good question, and one that's almost impossible to answer - other than to say at any point between 1920 and 1939. Possibly.