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).
Graph comparing the viscosities of various oils plotted against temperature.
| Identifier | WestWitteringFiles\S\March1928-May1928\ Scan076 | |
| Date | 28th March 1928 guessed | |
| COMPARISON OF VISCOSITIES FOR VARIOUS OILS. Y-AXIS: TEMPERATURE - °C VALUES: 80, 70, 60, 50, 40, 30, 20, 10, 0 X-AXIS: TIME OF EFFLUX - SECS: VALUES: 250, 500, 750, 1000, 1250, 1500, 1750, 2000 CURVE LABELS (FROM BOTTOM TO TOP): LARD OIL E.R.G. OIL LOVE JOY OIL COMPRESSOR OIL WAKEFIELD'S SHOCK ABSORBER OIL MOBILOIL E MOTORINE C CASTROL R | ||