Photograph of a fractured Borg & Beck clutch pressure plate after a test.
| Identifier | ExFiles\Box 129\2\ scan0150 | |
| Date | 1st December 1935 | |
| Handwritten: X1110 Embossed on plate: BORG & BECK CO. LTD. LEAMINGTON SPA, ENG. PAT. NO. Text on label: TEL. 1580 CL.12/35 BORG & BECK CLUTCH PRESSURE PLATE AFTER 25 HOURS TEST IN THE RA... 36 PKGS. & 1400 R.P.M. ON A... 5 MINS. | ||
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).