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 coolant flow venturis, piece number EX.19444.
| Identifier | ExFiles\Box 149a\3\ scan0257 | |
| Date | 29th March 1940 | |
| RH.{R. Hollingworth} c to Rm{William Robotham - Chief Engineer}/Col. File water pumps 1269 Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards}2/GH.29.3.40. re COOLANT FLOW VENTURI. ----------------------- Will you please make up two venturis. Piece number EX.19444. Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards} | ||