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).
The instruction of Elliott ammeters for the 20 HP chassis and Weston ammeters for the 40/50 HP chassis.
| Identifier | ExFiles\Box 168\5\ img080 | |
| Date | 20th August 1926 | |
| V4622 20.8.26. RE ELLIOTT AMMETER We have received information from BY/Mtn. to the effect that Elliott ammeters have been instructed for the 20 HP. chassis and Weston ammeters for the 40/50 HP. chassis. EFC. | ||