Lot: 309
The Mechanical Handling of Mails in Large Sorting Offices, January 1952, quarto, cloth-bound, gilt, fine; a report produced by the joint postal administrations of Great Britain, Netherlands and Switzerland. 154pp with many illustrations, plus 22 fold-out Diagrams and charts. Also British Postal Engineering, 1971, proceedings of a conference hosted by the Institution of Mechanical Engineers in 1970, hardback in dustjacket, 390pp, many illustrations.