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).
Progress chart tracking the development of experimental cars from 1939 to 1940.
| Identifier | ExFiles\Box 117\2\ scan0048 | |
| Date | 27th June 1939 | |
| PROGRESS OF EXPERIMENTAL CARS. SHEET 2 1939 MAY JUNE JULY AUG. SEPT OCT NOV. DEC. 1940 JAN FEB. MARCH APR. MAY JUNE JULY AUG. SEPT OCT NOV. DEC. COMET 11-B-5 CORNICHE 12-B-5 14-B-5 CRESTA 4-B-50 SAGE GREEN SILVER WRAITH. 31-G-7 SILVER DAWN 32-G-7 M.S. SPECIAL 33-G-7 RIPPLE R-1 27 - 6 - 39 | ||