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).
Instructions for testing an off-set contact arm for ignition contact makers.
| Identifier | WestWitteringFiles\Q\January1927-March1927\ 71 | |
| Date | 1st February 1927 | |
| PO-B. FROM R.{Sir Henry Royce} C. to BY.{R.W. Bailey - Chief Engineer} EFC. IGNITION CONTACT MAKERS. R6/M1.2.27. X8692 I understand that Derby has the necessary instructions for off-set contact arm, and is testing the same. R.{Sir Henry Royce} | ||