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).
Cross-section drawing of a Top Bevel T.L. Jack with lift measurements.
| Identifier | ExFiles\Box 139\1\ scan0118 | |
| Date | 21th April 1936 | |
| 1ST LIFT = 2 13/16" 2ND LIFT = 2 7/8" 3RD LIFT = 2 7/8" TOTAL LIFT = 8 9/16" 5 1/16 CLOSED TOP BEVEL T.L. JACK M.{Mr Moon / Mr Moore} 2858 21-4-36 RHA | ||