Blueprint detailing the cross-section and dimensions of a rivetted oil and splash guard.
| Identifier | ExFiles\Box 171\3\ img165 | |
| Date | 3rd May 1921 guessed | |
| OIL GUARD RIVETTED IN POSITION, SPLASHGUARD RIVETTED IN POSITION, 100R, .275 +.15 -.15, DRILL .515 DIA +.15 -.15, 1.000 DIA, .150, 1.200 RAD, 7.500 RAD, 7.700, 1.650 +.10 -.10, 3.375 +.10 -.10, .250R, 1.400, 4.875 +.2 -.2, .375 +.2 -.2, CE | ||
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).