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).
Sketch showing the oil restriction in the rockers for a Super Sports Engine.
| Identifier | ExFiles\Box 13\2\ 02-page021 | |
| Date | 12th November 1928 | |
| V.410. R 10-11-28 .0625 DIA. ROLLS-ROYCE, LIMITED PRINT ROOM. 12 NOV 1928 DERBY. SKETCH SHEWING OIL RESTRICTION IN ROCKERS. (SUPER SPORTS ENGINE) | ||