Boley 3L and 4L lathes (both early and later types for bench and maker's stand mountings with countershafts). This lathe was also the basis for the Smart * Brown Model M made post-1945. A complete data pack consisting of an Operation Manual with Electrical Schematics, useful sectional drawings and a copy of the Sales & Specification Catalogue. Also, an early catalogue showing the early, open-headstock versions of the 3L and 4L and the very similar lathes based on them, the 3R, 4R, 3C, H, PA and PS.  Both these are in GERMAN. 
Also included is the manual for Smart & Brown Model M (which contains some useful sectional drawings) and two ENGLISH language catalogues - one for the lathe and another for the Accessories, together with the special Boley catalogue showing stands, drive systems and countershafts - many of which could be used with the L-Series lathes. This is the only known technical literature for these lathes, but is useful for both early and late types as shown here http://www.lathes.co.uk/boley/ and here: http://www.lathes.co.uk/boleylate4l/