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).
Attaching oil consumption figures for specific trial cars up to the end of July.
| Identifier | ExFiles\Box 144\3\ scan0312 | |
| Date | 15th August 1938 | |
| CES SWDC. 1220 File S/W. Rm.{William Robotham - Chief Engineer} Oil Consumption. Cx{Major Len W. Cox - Advertising Manager}1/KW15.8.38 I attach hereto figures to the end of July in respect of Trials Cars Nos. 3-CP 30, 3-CM-87 and GHO-50. Encs. RC{R. Childs}1/L9.8.38 RC{R. Childs}2/L9838 RC{R. Childs}3/L9.8.38 KW for Cx.{Major Len W. Cox - Advertising Manager} | ||