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).
Front view of a car fitted with a wide test rig, with two occupants.
| Identifier | ExFiles\Box 155\4\ scan0063 | |
| Date | 1st March 1939 guessed | |
| B.T.M 37 Schedule II. Sheet 7 2/6 | ||