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).
Blueprint showing two cross-sectional views of a mechanical assembly.
| Identifier | ExFiles\Box 125\2\ scan0099 | |
| Date | 7th June 1932 guessed | |
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