Photograph showing a broken spring retaining ring and the ball race housing assembly it came from.
| Identifier | ExFiles\Box 136\2\ scan0364 | |
| Date | 23th March 1943 guessed | |
| B3 BP SHOWING BROKEN SPRING RETAINING RING (BALL RACE HOUSING ASSEMBLY). | ||
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).