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).
Drawing of a breather arrangement, including a deflector and joint washer.
| Identifier | ExFiles\Box 126\2\ scan0148 | |
| Date | 18th November 1938 guessed | |
| BREATHER ARRGT., SS{S. Smith} 223, TOP OF CRANKCASE + CYLS, 7/8", DEFLECTOR, JOINT WASHER, 3 1/2", 1 9/32", 1 3/16", 1/32", 30°, 3/8" | ||