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).
Price list for carburettors and a clutch for various car models.
| Identifier | ExFiles\Box 93\2\ scan0238 | |
| Date | 13th July 1938 guessed | |
| 308 . Phantom II Carburetter E84480 Retail Price £ 19-10-0 Cost to R.R. Ltd £ 10-11-4 R.R. 20/25 S.U. Type Carburetter F60092 Retail Price £ 13-10-0 Cost to R.R. Ltd £ 8-12-10 R.R. 20hp Carburetter E51367 Retail Price £ 12-1-8 Cost to R.R. Ltd £ 9-1-4 20/25 R.R. Clutch less operating mechanism Retail Price £ 11-5-3 . Cost to R.R. Ltd £ 8-9-0 | ||