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).
Photographic report cover sheet regarding aluminium sparking plug washers.
| Identifier | ExFiles\Box 42\4\ Scan037 | |
| Date | 12th April 1933 | |
| Photographic Section. Report No. F/Eq/59A. SUBJECT: Aluminium sparking plug washers. Series:- "GM". Negative No:- 643 Unit:- M.A.E.E. Felixstowe. Please quote as above for future copies. [STAMP] ROYAL AIR FORCE OFFICIAL CROWN COPYRIGHT RESERVED MAEE U Date 12.4.33 | ||