Herbert 4 Senior Capstan Lathe with Dial-change Headstock - identifiable by a 4-spoke, capstan-style wheel on the face of the headstock. Two editions of the Operator's Instruction, Maintenance and Dismantling Manual.
Herbert 4 Senior Capstan (and Monoslide Lathe) with Dial-Change Headstock -identifiable by a 4-spoke, capstan-style wheel on the face of the headstock : Parts Manual as Exploded Component Drawings.