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).
Telegram message received by telephone regarding valve, crack, and plug testing.
| Identifier | ExFiles\Box 173\2\ img163 | |
| Date | 10th March 1933 | |
| ROLLS-ROYCE LTD. TELEGRAM RECEIVED BY TELEPHONE. RM.{William Robotham - Chief Engineer} 146A. 15M BKS. I 47609-10.3.33 J.9720/2. Time Received: Date: To: By: from: valves between valves cracks five circumferentially plug tested to diametrically opposite still give optimum result hope you tested larger exhaust valves FROM: Robotham. THIS SHEET MUST BE FILED. | ||