Photograph showing the condition of upper halves of main bearings after 15,000 miles of use in France.
| Identifier | ExFiles\Box 83\2\ scan0036 | |
| Date | 20th May 1937 guessed | |
| <- 1 to 7 -> UPPER HALVES 6.B.IV. (B.IV). MAIN BEARINGS. HOYTS Z3 W/M. AFTER 15,000 MILES IN FRANCE R.R.56 SHIMS 2 HOLES IN EACH JOURNAL | ||
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).