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).
Not proceeding with the LeC.5221 3-ring piston with ring stops for the Phantom III.
| Identifier | ExFiles\Box 94\5\ scan0122 | |
| Date | 12th August 1936 | |
| Mths.{Reg Matthews} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} ✓336 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}7/MJ.12.8.36. Herewith LeC.5221 3 Ring Piston with Ring Stops Phantom lll. We are not proposing to go forward with this for the time being. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||