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).
Blueprint comparing the chassis frames of a Spectre and a Cadillac.
| Identifier | ExFiles\Box 94\4\ scan0042 | |
| Date | 10th May 1935 | |
| LEC4486 C OF FRONT WHEELS 91.000 CADILLAC FRAME 210.000 DATUM LINE BACK OF DASHBOARD C OF FRONT WHEELS 54.885 SPECTRECodename for Phantom III FRAME 190.550 FRAME COMPARISONS - SPECTRECodename for Phantom III- SCALE = 1/24 ROLLS-ROYCE, LTD PRINT ROOM MAY 10 1935 | ||