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).
Blueprint for an experimental 14mm plug assembly.
| Identifier | ExFiles\Box 163\5\ img039 | |
| Date | 15th June 1936 | |
| CHANGE RECORD SIGN WAS No. DATE BY APP'D CONFIDENTIAL S ROLLS DRAWN FROM SCALE: 1-1 DATE: 15-6-36 NAME: EXP. 14 m/m PLUG ASSEMBLY USED ON: MATERIAL: WT. PR.{Percy H. Rose} M: FINISH: 6 INSULATION MAT. SPEC.: DRAWN: RR TRACED: CHECKED: APPROVED: A.C.SPHINX SPARKING PLUG CO. LTD. DUNSTABLE, BEDS. ENGLAND. X 412 S.M.C. A.C.S. 691-2,500-5-35 | ||