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).
Drawing of a component part with a diameter dimension.
| Identifier | ExFiles\Box 90a\4\ Scan202 | |
| Date | 15th September 1936 | |
| E.R.H. / 15.9.36 TID DIA 2.8110 | ||