From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
List of experimental departments with corresponding department numbers and supervisor initials.
| Identifier | ExFiles\Box 142\1\ scan0247 | |
| Date | 12th October 1938 guessed | |
| -12- Dept.No. Department Supervisor. Experimental Departments 470 General in Experimental HPS{Horace Percy Smith - Experimental Factory Mgr} 471 General machining HPS{Horace Percy Smith - Experimental Factory Mgr}/WB{Mr Brazier/Mr Bell} 472 Miscellaneous Reqs; HPS{Horace Percy Smith - Experimental Factory Mgr}/WB{Mr Brazier/Mr Bell} 473 Main engine beds Lr{Mr Ellor}/ACL. 474 Single Cylinders Lr{Mr Ellor}/Psn 475 Aero electrical Lr{Mr Ellor}/Wst 476 Supercharger testing Lr{Mr Ellor}/ALN 477 C.I. and Marine Engines Wd.{Mr Wood/Mr Whitehead} 478 Hucknall Lr{Mr Ellor}/Dor.{Mr Dorey} 479 Chassis Experimental Rm.{William Robotham - Chief Engineer} | ||