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).
Confirming the arrangement for a pressure rig for sparking plug tests.
| Identifier | ExFiles\Box 58\2\ Scan172 | |
| Date | 30th November 1934 | |
| 81812. EJJ. From Hs{Lord Ernest Hives - Chair}/Wst. Hs{Lord Ernest Hives - Chair}/Wst.4/MA.30.11.34. PRESSURE RIG FOR SPARKING PLUG TESTS. We confirm that you will [strikethrough: arrange] to fix us up with a small electrically driven air [handwritten: compressor &] [strikethrough: bottle] for supplying pressure up to at least 150 lbs/sq.in. for the purposes of sparking plug pressure testing as agreed to by Hy.{Tom Haldenby - Plant Engineer} Hs{Lord Ernest Hives - Chair}/Wst. | ||