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).
Tool costs for the 'S'2 Series chassis production.
| Identifier | ExFiles\Box 105\1\ scan0280 | |
| Date | 20th August 1937 guessed | |
| Extra Tool Cost Nil. Could be brought on to production at the 1st chassis in "S"2 Series (without scrap). | ||