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).
Radamax plug tester for use on an experimental car.
| Identifier | ExFiles\Box 50\2\ Scan011 | |
| Date | 4th January 1921 | |
| X4294 To Hs{Lord Ernest Hives - Chair}/TMW. from EFC. EFC 8/T4.1.21. X.4294 - RADAMAX PLUG TESTER. We are handing you a Radamax plug tester which we have ordered up for use on the experimental car. Returned to makers for changing. EFC. | ||