The text (36pages) of a paper presented in 1969 on steam locomotive development written by Harold Holcroft (ex GWR and Southern Railway) a well known locomotive engineer.
Hornby R3000 BR Black 4-6-0 B1 'Sir Harold Mitchell' 61243 Steam Locomotive DCC
North American Steam Locomotive Builders and Their Insignia By Harold Davies HC
North American Steam Locomotive Builders… by Harold Davies UNOPENED w plastic on
Vintage KCS EMD Diesel Locomotive 153 Train Photo Harold K. Vollrath Joplin MO
Harold Hargrove Fort Wayne Train Depot Locomotive Signed Canvas Art w/ COA
