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 of valve lift in inches versus crankshaft degrees, for use on a Cadillac with a hydraulic tappet.
| Identifier | ExFiles\Box 173\2\ img156 | |
| Date | 20th February 1934 guessed | |
| TO BE USED ON CADILLAC WITH HYDRAULIC TAPPET VALVE LIFT INS .020 .015 .010 .005 CRANKSHAFT DEGREES 0 10 20 30 40 E.N. MASON & SONS LTD. ARCLIGHT WORKS. COLCHESTER | ||