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).
Requesting an official order be placed with Hepworth & Grandage for various rings.
| Identifier | ExFiles\Box 148\3\ scan0296 | |
| Date | 7th January 1938 | |
| 1256 To Roy.{Sir Henry Royce} c.c. to G/JWH. c.c. to HPS{Horace Percy Smith - Experimental Factory Mgr}/W.Butterworth. Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews}7/JH.7.1.38. Will you please pass an official order to Messers. Hepworth & Grandage for the following rings. 72 EW.1536. in Ordinary single cast material. 72 Rm.{William Robotham - Chief Engineer}471 " " " " " 72 EW.1536 in High Phosphorus molybdenum material. 72 Rm.{William Robotham - Chief Engineer}471. " " " " " Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews} | ||