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 factory cost breakdown for a Wraith III Radiator.
| Identifier | ExFiles\Box 148\5\ scan0187 | |
| Date | 13th August 1937 | |
| To Rm{William Robotham - Chief Engineer}/STD.from G/Rb.{R. Bowen} G/Rb.{R. Bowen}15/K/73/R.16837. 126 O Wraith III Radiator Sec.5250. hdw Rm{William Robotham - Chief Engineer}/STD Rm{William Robotham - Chief Engineer}/STD.8/AP.13.8.37. In accordance with your request for cost figures for the Wraith Radiator to LOP.EW.1205 less shell parts as shown in your memo the following is the estimated factory cost. £. s. d.{John DeLooze - Company Secretary} Material 4 12 1 Labour 2 5 0 175% Charges 3 18 9 ------- £10 15 10 G/Rb.{R. Bowen} ASK | ||