Blueprint with front and side elevations of a distributor cap, featuring dimensions and a dial.
| Identifier | ExFiles\Box 168\3\ img132 | |
| Date | 5th October 1929 | |
| .091, .093, .122, .123, .4895, .4900, 3 47/64, 2 9/16 DIA., 3/4, 1, 2, 4, 6, 8, 10, 12, E OF ROTOR, ALTERATIONS, FROM, NOTICE, DATE, A, 82C/9B CAP, H.C., 5.10.29, B, C, D, E, F, G, H | ||
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).