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).
Tappets and Push Rods for the Wraith III and Bentley III models.
| Identifier | ExFiles\Box 10\3\ 03-page167 | |
| Date | 13th July 1938 | |
| 654 Swdl.{Len H. Swindell} Da{Bernard Day - Chassis Design} 10/G.13.7.38 Wraith III + Bentley III Tappets and Push Rods File 1360. | ||