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).
Drawing of a 20 HP engine mounting.
| Identifier | ExFiles\Box 104\1\ scan0067 | |
| Date | 6th February 1930 | |
| .500 ace 1.250" 20 H.P. ENGINE MOUNTING ROLLS-ROYCE LIMITED PRINT ROOM 6 FEB 1930 DERBY. Hs{Lord Ernest Hives - Chair} 264 | ||