Butler 550, 570 & 460 Lathe (also badged as the Elliott Concord 550, 570 & 460) - also covers the model sometimes listed as the 560 and 570: Illustrated Parts Manual as Exploded Assembly Diagrams.

ELLIOTT, Butler LATHE CONCORD 460 (18") and 550 (22") - also badged as the Butler 460 & 550 and Gate 460, 560 and 570: Instruction & Maintenance Manual. Includes a copy of the maker's comprehensive Technical Sales Catalogue and clear diagrams of the often illegible Screwcutting and Feeds Charts.

Elliott, Gate, Enterprise  "Rigidturn" (and other brandings including Mysore Kirloskar) Lathes 1810 and 2215 Operation Manual with a Parts Manual as sectional drawings.

Gate Rigidturn Lathe Models 1810 and 2215. Instruction Book and Parts as Sectional Drawings with Electrical Diagram:

Enterprise Lathe Model 1675 (by Mysore Kirloskar) - also sold badged as a "Gate". Detailed Operator's Instruction and Maintenance and Lubrication Manual with Spares Parts Manual as high-quality Sectional Drawings. Includes a Wiring Diagram.