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 specifications for engine and electrical components.
| Identifier | ExFiles\Box 92\3\ scan0081 | |
| Date | 29th January 1937 | |
| -3- Em.11/AP.29.1.37. ENGINE. (13) Thermometer - water thermometer with special flexible capillary dispensing with rubber mounting. ELECTRICAL (1) Motor - fitted with cork friction buffers to reduce armature speed on disengagement. (2) Plugs - K.L.G. "Corundite" type. (3) Head Lamps - latest Lucas design. Rm.{William Robotham - Chief Engineer} | ||