Off-side central bracket for lower arm pivots.
| Identifier | ExFiles\Box 99\2\ scan0162 | |
| Date | 4th March 1938 guessed | |
| O.S. Central bracket for lower arm pivots after 1750 hrs. | ||
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).