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).
Instruction sheet regarding a switchbox with an armature contact, its condition and replacement.
| Identifier | ExFiles\Box 65\2\ scan0062 | |
| Date | 10th December 1930 | |
| RR 228 (150 BKS.) (DB {Donald Bastow - Suspensions} 461-8-12-24) NP 3C6975 X. 7730. ROLLS-ROYCE LTD. INSTRUCTIONS. To: F.E.C Order No. AD 74 Customer's No. X 7730 Switchbox with Armature Contact in Ignition Position, from 18 EX This switchbox has now been replaced by one suited to the two rate charge scheme. It has run 13666 miles without complaint. The contacts are in very good condition, almost as new except for slight blackening and a trace of burning on the field contact finger. It has been handed to production for using up the parts. Signed F.H. This Sheet must be filed on completion of the work. | ||