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).
Instruction from Mr. Royce to create three sets of back axle bevels for the 20 HP chassis.
| Identifier | WestWitteringFiles\C\June1919\ Scan26 | |
| Date | 19th June 1919 | |
| To Dk. from E.{Mr Elliott - Chief Engineer} Copy to C.I. EFC. ORIGINAL. E2/G11/6/19. RE 20 H.P. CHASSIS - BACK AXLE. X. 3493 In accordance with Mr. Royce's instructions, would you please have made three sets of back axle bevels for the 20 H.P. chassis, to give 22, 24, and 26 miles per hour road speed at 1,000 revs. per minute of the engine. E.{Mr Elliott - Chief Engineer} 19 JUN 1919 RECEIVED | ||