Sketch of a B.V. Frame.
| Identifier | ExFiles\Box 113\5\ scan0120 | |
| Date | 17th March 1940 | |
| SKETCH OF B.V. FRAME. D B C A ROLLS-ROYCE LTD. PRINT ROOM 17 MAR 1940 DERBY. RM {William Robotham - Chief Engineer} 610 | ||
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).