Locomotives: 'Locomotive Mileage Book' from Traralgon Loco. Depot showing all movements 1955-58, in specially prepared books (17); 'Data Supplied by Herr Ing Fr.Witte comprising: Dynamometer Trials of Coal Dust Locos Economic Service of Coal Dust Locos Steel Fireboxes on Coal Dust Locos', a former Central Records’ file compiled in 1946 but dealing with 15 trials dating back to 1928; 'Water Treatment', being an ex. North Melbourne Loco. Depot file with daily lists of all locos undergoing blowdown and water treatment, 1957-58. (19 books)