Granville Lathes: no manual was ever issued (but see below) but reproductions od the complete set of known Catalogues for this make is available and consist of: "Star" Sales, Specification & Accessories: "Senior" 3.5" and 4" Models - two Sales, Specification & Accessories publications: 12 pages. "Senior" 3.5" Model, Publicity booklet issued by the makers and the Granville/Centec miller. 30 pages. To help with Granville I'd recommend the following book: "The Amateurs Lathe".