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).
Recommending to charge a silencer to the 25 HP Experimental Order No. 54105.
| Identifier | ExFiles\Box 27\2\ Scan010 | |
| Date | 24th January 1933 | |
| 81775. To G/Gn. From Hs.{Lord Ernest Hives - Chair} Hs.{Lord Ernest Hives - Chair}5/MJ.24.1.33. Replying to G/Gn/GWH.{George W. Hancock - Head Chateauroux}1/NR.20.1.33. This silencer was sent to us by Sales and we recommend that this should be charged up to the 25 HP. Experimental Order No.54105. Hs.{Lord Ernest Hives - Chair} | ||