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).
Wraith III and Bentley III Connecting Rods.
| Identifier | ExFiles\Box 99\1\ scan0105 | |
| Date | 15th September 1937 | |
| 61H Rm.{William Robotham - Chief Engineer} Da.{Bernard Day - Chassis Design}2/G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 15.9.37 Wraith III + Bentley III Connecting Rods. in file 61H | ||