FORTIS (a re-badged Clausing) 100 Series and 4800 Series "12-inch" (6-inch centre height) Lathes. Three  Instruction and an Illustrated Parts Manual (with detailed Cross Sectional Drawings & exploded illustrations) that cover all variants of these early lathes from the 100 Model of 1938 to the renamed machine (Series 4800) of 1952 - and to the last versions made in 196