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).
Attachment of oil consumption figures for two Trials Cars for the month of April.
| Identifier | ExFiles\Box 144\3\ scan0204 | |
| Date | 5th May 1937 | |
| MTHS.{Reg Matthews} Small 1220 S/W. Rm.{William Robotham - Chief Engineer} Oil Consumption. Cx{Major Len W. Cox - Advertising Manager}6/KW5.5.37. I attach the oil consumption figures for the month of April for our Trials Cars B-39-JY and B-119-JY. Encs. RC{R. Childs}4/L4.5.37 RC{R. Childs}5/L4.5.37 Cx.{Major Len W. Cox - Advertising Manager} Rwb | ||