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).
Request to manufacture two core plugs with pressure tubes for a B.60 head and block.
| Identifier | ExFiles\Box 124\1\ scan0154 | |
| Date | 14th June 1939 | |
| 1044 To HPS.{Horace Percy Smith - Experimental Factory Mgr} c. to HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards}14/JH.14.6.39. B.60 Coolant pressure. Will you please make up two core plugs to fit in the rear of a B.60 head and block, fitted with a pressure tube as shown on attached sketch. Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards} | ||