BSA No. 4 and 4G Centerless Grinder (also sold as the Churchill No. 1) Detailed Operator's Manual with numerous sectional drawings and an electrical schematic.

BSA No. 12 Centreless Grinder. Operator's Manual with wiring diagram.

BSA No. 7 Centerless Grinder. Operator's Manual with wiring diagram.

BSA No. 8 Centerless Grinder (also branded Herbert). Two Operator's Manuals - one early the other late - with useful sectional drawings and a wiring diagram. Includes a copy of the maker's detailed and well-illustrated Sales & Technical Specification Catalogue.

Churchill No. 1 Centreless Grinder (also sold as the BSA No. 4G) Detailed Operator's Manual with numerous sectional drawings and an electrical schematic.