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).
Arrangement of additional inertia to 25 HP spring drive.
| Identifier | ExFiles\Box 103\3\ scan0151 | |
| Date | 18th April 1932 | |
| Hs{Lord Ernest Hives - Chair} 579 MODIFICATION TO F54538 .450 .050 Rd 8.140 DIA -1 MATERIAL S/M 9.150 DIA 8.144 DIA +1 6.840 DIA 6.940 DIA 8.144 DIA .050 Rd 1.000 .150 ARRANGEMENT OF ADDITIONAL INERTIA TO 25 HP SPRING DRIVE Le C 2457 ROLLS-ROYCE, LTD. PRINT ROOM APR 18 1932 DERBY. | ||