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).
Official order for 50 piston rings from Light Production Co. Ltd.
| Identifier | ExFiles\Box 87\2\ scan0220 | |
| Date | 4th August 1936 | |
| X236 To Roy.{Sir Henry Royce} Hs{Lord Ernest Hives - Chair}/Mths.{Reg Matthews}31/JH.4.8.36. Will you please pass an official order to the Light Production Co.Ltd., for the 50 piston rings asked for in our letter reference Hs{Lord Ernest Hives - Chair}/Mths.{Reg Matthews}22/MA.4.8.36. Hs{Lord Ernest Hives - Chair}/R.Matthews. | ||