Letters, paper, manuscript letters from Letters from Andre Chapelon to Col. H.C.B. Rogers, 20 September 1969 to 15 June 1978. Extensive collection of letters on technical and engineering matters, written by Andre Chapelon to Col. Hugh Cuthbert Bassett Rogers. Includes extensive autobiographical notes and Chapelon's comments on the draft chapters and illustrations for Rogers' book "Chapelon: Genius of French Steam" published in 1972. Also includes Chapelon's reminiscences on a visit to Brighton to inspect Bulleid's 'Leader' class locomotive.