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).
Product list for transmitting oil pressure gauges by Negretti & Zambra.
| Identifier | ExFiles\Box 40\1\ Scan093 | |
| Date | 17th August 1926 guessed | |
| X3695. Transmitting Oil Pressure Gauges by NEGRETTI & ZAMBRA Scientific Instrument Makers to the British & Foreign Governments List No. G.10 38 Holborn Viaduct, E.C.1 Factory: Half Moon Crescent, Barnsbury, N.1 LONDON Telegrams and Cables: NEGRETTI, LONDON Telephone: HOLBORN 6418, 6419 | ||