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).
Sketch showing dimensions of a proposed 'Spectre' radiator.
| Identifier | ExFiles\Box 149a\3\ scan0106 | |
| Date | 6th July 1934 | |
| SKETCH SHOWING DIMENSIONS OF PROPOSED, "SPECTRECodename for Phantom III" RADIATOR, 22.350, 26.750, TOTAL AREA - 577 ☐", MAX: PERMISSIBLE DEPTH 3.300", .350R, 5.250, 7.500, ROLLS-ROYCE LTD., C.H./181, 6.JUL.1934, DERBY | ||