Three DP2 2700h.p. prototype diesel EE Co Ltd, Bradford files including reports on construction, design and operation dating from June 1960 – January 1968. One file on Brush Type 4 and other locos: English Electric Co cost and weight estimates Feb-March 1962, English Electric (EE) estimates for uprating 100 Type 1 locos with 8CSVT engine October 1968, EE estimates for re-engining type 4s and EE estimate for conversion of Type 1 loco to 5’3” gauge for UT. Two AEI Trafford Park files on 0206 LION type 4 2750 h.p. prototype. BRCW/Sulzer/AEI, including reports and correspondence sent from Trafford Park May 1960 to March 1966. Inspectors report August 1958 on 10203 supercharger failures. Correspondence on EE export locomotives spares for diesel electrics, Belgrano Railway, Argentina and a Iraq Railways photograph album.