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).
Order for two pairs of 20 HP front road springs with specifications.
| Identifier | ExFiles\Box 52\2\ Scan266 | |
| Date | 23th January 1931 | |
| To. Order Office. X4429 Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 2/KT.23.1.31. 20 HP. ROAD SPRINGS. X.5410. X.4429. Will you please order for us two pairs of 20 HP. front springs. Free Camber 4.5" Pos. Loaded Camber .5" Pos. Poundage at .5" Pos. Camber 700. Number of plates thickness etc. to be left to Messrs Firths' designers. We suggest they should be similar to those supplied to Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 2/MJ.14.5.30. They should be groved for lubrication. These are urgently required. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} | ||