Drawing of a Jackall junction box showing a point of failure.
| Identifier | ExFiles\Box 101\4\ scan0082 | |
| Date | 30th August 1935 | |
| 21 G. {Mr Griffiths - Chief Accountant / Mr Gnapp} IV. 30/8/35. Jackall junction box showing failure. BROKEN OFF HERE. RHattinson | ||
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).