On 3rd July 1938 A4 LNER Pacific 'Mallard' achieved the world speed record for a steam locomotive of 126mph and in this publication the author relates the full story of how the record was achieved. With the background of the rivalry between the LMS and LNER and the highly regarded design features of the locomotive, designed by Sir Nigel Gresley, this is a fascinating reminder of the days just before the Second World War when Britain's steam railways were at their zenith. 23 b/w photos. 200 pages. Paperback