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).
Blueprint showing a test rig and recording apparatus for measuring radiator movement.
| Identifier | ExFiles\Box 14\8\ Scan224 | |
| Date | 20th February 1930 guessed | |
| Hs{Lord Ernest Hives - Chair} 267 TEST RIG RECORDING APPARATUS 1/10 SECS RAD MOVEMENT | ||