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).
Request to obtain two dies for cleaning sparking plug threads.
| Identifier | ExFiles\Box 58\2\ Scan250 | |
| Date | 8th November 1935 | |
| To RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Wst. r6000. Hs{Lord Ernest Hives - Chair}/Wst.11/MJ.8.11.35. Will you please obtain for us two dies for cleaning sparking plug threads, one 14 mm. and one 18 mm. thread. Hs{Lord Ernest Hives - Chair}/H.E.West. | ||