The 1840 2d blue - surely one of the most beautiful stamps ever issued - why not learn more about this stamp and the other blues that followed it. THE pioneer was Harry Osborne who produced two marvelous books - both still very much containing up to date information and with superb photographic plates. His book on 2d plate 9 is one of the rarest on GB classic issues. For sheer value for money Mike Jacksons' book at £25.00 plus postage is unbeatable value for money.