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).
Technical drawing illustrating the specifications for the front and rear leaf springs of a 3 1/2 Litre S.S. vehicle.
| Identifier | ExFiles\Box 126\5\ scan0153 | |
| Date | 8th March 1938 guessed | |
| 3 1/2 LITRE S.S. FRONT SPRING S.S.76. 37" 17 3/16" 12 LEAVES 2 LEAVES - .3125 THICK x 2" 3 1/4" 1 1/4" .750 4 1/4" 5 1/2" BRONZE BUSH PRESSED IN .500 .700 REAR SPRING. 9 LEAVES WIDTH OF LEAVES - 1 3/4 x 7/16 Per 2 LEAVES. 40" 3 3/8" 4 3/4" REAR END. 3/4" 4 7/8" 1 13/16" 11" 15 7/8" 20 1/2" S.S 75. SILENT BLOCK 1 5/16" 1/8" 1 3/4" .435 DIA 2" 1/8" | ||