Gresley's A3s

Nigel Gresley built his Pacific class of locomotives to deal with increasing demands from passenger traffic. Some Pacifics started as Class A1s but were eventually rebuilt to Class A3 specifications. Others were built as A3s from the outset. Suffice to say the A3s underwent a number of significant alterations during their lifetime extending from 1922 to the mid 1960s. Gresley's A3s documents many members of the class in well-researched captions. These are set against photographs which appear in a chronological sequence. We learn how many different tenders were coupled to a locomotive; how they were converted from right hand to left hand drive; the many colour schemes employed; and latterly how trough deflectors were fitted to a number of engines.