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).
List of marine engine components and data wanted from various suppliers in the U.S.A.
| Identifier | ExFiles\Box 133\3\ scan0105 | |
| Date | 3rd February 1940 guessed | |
| 1128 COPY FOR MARINE FILE. WANTED FROM U.S.A. (1) Data of Jocs gears. Snow & Petrelli Mfg. Co. New Haven Conn. (2) Data of twin disc marine gears. Twin disc clutch Co. 1369 Racine St.{Capt. P. R. Strong} Racine Wiscansin. (3) Harrison inter-cooler. Harrison Radiator Division. General Motor Corp. Lockport N.Y. | ||