VDF All-models catalogue dated 1951 showing lathes, planing machines, bevel gear generators, Boehringer-Sturm Hydraulic drive units and factory Views.

LIEBHERR S500 and S800 Gear Hobber: Detailed Operating Manual with tables of gears and differential change gears (includes a copy of the detailed sales catalogue for the similar L301). The manual is listed as for the S500 but contains many pages refering to the S800.