Photograph showing the condition of G.B.IV. main bearings after 15,545 miles of use in France.
| Identifier | ExFiles\Box 115\3\ scan0103 | |
| Date | 10th November 1937 guessed | |
| ← 1 to 7 → UPPER HALVES 6.B.IV. (B.IV). MAIN BEARINGS. HOYTS Z3 W/M. AFTER 15,545 MILES IN FRANCE R.R.56 SHIMS 2 HOLES IN EACH JOURNAL P.T. | ||
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).