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).
Note regarding W.III & B.III cylinder blocks, referencing another file.
| Identifier | ExFiles\Box 99\1\ scan0116 | |
| Date | 1st September 1938 | |
| 419. Swell. Da.{Bernard Day - Chassis Design}1/q. 1.9.38. W.III & B.III cylinder block. see file 1124. | ||