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).
Numbered list of specifications and modifications for various vehicle components.
| Identifier | ExFiles\Box 108\1\ scan0244 | |
| Date | 3rd January 1938 guessed | |
| -3- 35. Radiator incorporating baffle EW.1170 in top tank. Also on the 6 Production cars. 36. 5 Blade Cadillac Type Fan. " " " " " 37. Radiator Filler EW.1552. " " " " " 38. Rear Axle Tubes in .4% Carbon Steel - Differential Ball Brgs. having steel cages in place of brass. S/N Tubes are instructed for the first 6 cars. 39. Sessions Oil Tank for Jacks. Also on the 6 Production cars. 40. Front Roll Rod to FCD.306 ( to be fitted later). " " " " " 41. .064 thick Alum Bonnet. " " " " " 42. Engine Unit. On the Unit fitted to 26-G-VI we have incorporated the following which are not included on the 6 production units. a.{Mr Adams} Big-End Brgs. in AC.6 .062 thick - no liners. Three rods having flangeless bearings. Three rods having bearings with flanges. b. Cam balance tappets removed. c. Eight holes drilled in the centre plate of the Damper plate to Rm.{William Robotham - Chief Engineer}485. 43. Gear Box. The Gear Box is as instructed for the 6 production cars with the following exceptions. GW.777 Coupling and GW.779 Trans. shaft having been produced in E/W in place of S/ZN. 44. The Electrical specification is as the 6 Production cars. | ||