Herbert No. 4 Senior (and 4SE) Capstan Lathes with Dial-Change Headstock (identifiable by a 4-lever rotary speed control): Operator's Instruction Manual.

Herbert No. 4 Senior Preoptive Monoslide Lathe: Operation Manual with Maintenance Instructions.

Herbert No. 4 Senior Preoptive Capstan Lathe: Parts Manual as Exploded Component Drawings (full 180-page edition). Includes a copy of the maker's detailed 12-page Sales, Technical Specification & Accessories Catalogue.