AMK Radial-arm drill Type BR40 (as made by WMW and also badged "Union", BFW and BOWES). Operator's Instruction and Maintenance Manual with useful sectional drawings, annotated photographs of various assemblies and a Wiring Diagram.
Manuals and Catalogues
Heckert (Union - WMW) BR 40 x 1250 Radial Arm Drill (also badged as the VEB, Union, Bowes and AMK). Basic Operating Manual with Parts Repair Manual as Sectional Drawings and Photographs.
WMW (Union) AMK F33 (FU 250 x 1000) Milling Machine. Detailed Operator's Instruction Book with many useful Sectional Drawings and use of Accessories.