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).
Cross-sectional diagram of a Marles Steering assembly.
| Identifier | ExFiles\Box 130\2\ scan0084 | |
| Date | 30th July 1936 guessed | |
| MARLES STEERING. ENGINE SIDE OF BOX. PORTION A.{Mr Adams} B. OIL UNION SUPPLY PIPE. TUBING BROKEN OFF FLUSH WITH FACE OF CAP. PEN M LEVER. | ||