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).
Diagram illustrating the angular movement of a drop arm for a Marles steering box on a Bentley.
| Identifier | ExFiles\Box 28\2\ Scan192 | |
| Date | 18th May 1933 | |
| Ex 11226 VIEW IN DIRECTN OF ARROW ANGULAR MOVEMENT OF DROP ARM - MARLES STG. BOX ON BENTLEY 14° 61° STG. BOX TO EX. 11209 DROP ARM EX 11212 SLOTTED TO GIVE THESE ANGLES ROLLS-ROYCE, LTD. PRINT ROOM 18 MAY '33 DERBY. | ||