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).
Estimated cost of extra jigs, tools and equipment for a modification to fit water excluders to A, B & C series chassis.
| Identifier | ExFiles\Box 84\2\ scan0346 | |
| Date | 22th March 1935 | |
| Est. cost of extra jigs, tools and equipment (Sft{Mr Swift}/Ws. 22.3.35) £173.0.0. CERTIFIED Tool cost included in std. sheet X.no.206 water excluders "A", "B" & "C" SERIES. If this modification is fitted during production commencing at 1st chassis in E.{Mr Elliott - Chief Engineer} series, the scrap involved would amount to £9. Handwritten Table: Material | Labour | Charges | Total £-s.d | £-s.d | £-s.d | £-s.d Cost of Old Part. 2-0 | 1-4 | 2-0 | 5-4 Cost of New Part. 14-7 | 3-6 | 5-3 | 1-3-4 Nett Increase £- 18-0 | ||