A collection of LEO material including schematics and manuals. The collection is offered for sale for £10,000. This consists of 50 schematics and waveforms for the LEO II some of which have been annotated (One of the schematics looks to be from LEO I). Developmental notes, notebooks, waveforms, schematics, draft manuals, photos and publicity all for the LECTOR Auto reader. Booklets, leaflets and notes related to other English Electric Leo Computers including the KDF9 and LEO III. One or two of the manuals are the draft provisionalcopies. See https://historictech.com/product/historically-important-archive-of-early-english- computing-1955-70s/
