Letter from The Sphinx Manufacturing Co. Ltd. detailing successes of their AC-SPHINX plugs in motorsport events.
| Identifier | ExFiles\Box 79\2\ scan0173 | |
| Date | 29th June 1922 | |
| S-W Experimental Dept. INCORPORATING THE AC SPARKING PLUG CO. LTD. X1026 TELEGRAMS: "SPHINX, BIRMINGHAM" TELEPHONE: MIDLAND 1742 2 LINES PRIVATE BRANCH EXCHANGE. [STAMP: Hs {Lord Ernest Hives - Chair} SPHINX RECEIVED JUN 29 1922] [STAMP: J.S. RECEIVED JUN 1922] [STAMP: RECEIVED 27 JUN 1922] THE SPHINX MANUFACTURING CO. LTD ESTABLISHED 1904. SPECIALISTS IN SPARKING PLUGS. MAKERS OF MOTOR ACCESSORIES. BRADFORD STREET, BIRMINGHAM. SALES 533. LONDON OFFICES. 107, BISHOPSGATE, E.C.2. DIRECTORS: H. {Arthur M. Hanbury - Head Complaints} G. {Mr Griffiths - Chief Accountant / Mr Gnapp} LONGFORD W. A. {Mr Adams} CLARK Dear Sirs, You will be interested to hear that AC-SPHINX Plugs have again demonstrated their high efficiency in the following recent events:- On April 7th Haugdahl broke all World's Speed Records under International Motor Contest Association rules as follows (electrically timed):- 1 mile 19.97 secs. Speed 180.27 miles per hour. 5 miles 1 min. 56 secs. " 155.17 miles per hour. 10 miles 3 mins. 56 secs. " 162.70 miles per hour. On May 30th Murphy on a Miller Straight eight engine (Duesenberg chassis) won the 500 Mile India(Production 20 HP. with 4-speed box and Front Wheel Brakes)napolis Race at an average speed of 94.48 miles per hour. AC Standard 5/- Plugs were used in both instances. On June 17th Geo. H. {Arthur M. Hanbury - Head Complaints} Tucker achieved the World's Sidecar Record for the 600 c.c. class event at Brooklands at an AVERAGE speed of over 54 miles per hour using an AC-SPHINX Plug. These continuing successes serve to indicate the sound merit of our plug design and the sterling quality of the materials used in their production. AC-SPHINX Plugs are British. Their efficiency is beyond question and their cost to you as your standard engine equipment the lowest of all high-grade plugs. Yours faithfully, THE SPHINX MANUFACTURING CO. LTD. | ||
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).