Copy No 1′ of a 63 page report on the LEO computer for J Lyons & Company Ltd. including text and ‘small block schematic diagrams’ for submission to the Patent Office. The report has the handwritten and stamped mark ‘88147 Presented 27 July 1951’ as well as being stamped ‘Patent Office Library, 27 July 1951’. Listed in the report and included with it are 65 larger diagrams all stamped ‘Patent Office Library, 27 July 1951’. BL Explore Archives and Manuscripts catalogue. The catalogue number is Add MS 89294 http://searcharchives.bl.uk/IAMS_VU2:IAMS032-003391654
