POST OFFICE ENGINEERING DEPARTMENT — Technical Pamphlets for Workmen. [Group K]. BRIGHT COPIES IN ORIGINAL WRAPPERS

HMSO, 1936-[1937]. 3 vols., [of 5], 8vo., with illustrations and diagrams in the text; original blue wrappers, wire-stitched as issued, covers lightly dust-soiled else a very good, clean collection. The collection comprises K1: Electric Lighting; K4: Pneumatic Tube Systems; K5: Gas and Petrol Engines. With several errata slips pasted in text as appropriate. GROUP COLLECTIONS OF THIS NOTABLE AND HISTORIC SERIES ARE VERY SCARCE.