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 a cross-section of a mechanical assembly, possibly a pump or valve.
| Identifier | ExFiles\Box 179\3\ img165 | |
| Date | 1st March 1944 guessed | |
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