LeBlond "Dual Drive" Mk.2 Instruction and Illustrated Parts Manual as detailed Cross-Sectional Drawings. A number of the smaller parts illustrations have been scanned at very high resolution and enlarged to full-page size.
LeBlond "Dual Drive" Mk.1 Instruction and Illustrated Parts Manual as exploded-component pictures. Includes a copy of the maker's very unusual Sales & Technical Specification Catalogue - this being in the form of transparent sheets with overlayers - and so impossible to reproduce in its original form but interesting nonetheless!.