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).
Letter from Bosch Limited clarifying the required thread size for aero sparking plugs.
| Identifier | ExFiles\Box 58\2\ Scan091 | |
| Date | 1st May 1934 | |
| TELEPHONE: SHEPHERDS BUSH 2080 (4 LINES) TELEGRAMS: ELECBRIGHT, ACT, LONDON Handwritten: 81812a BOSCH LIMITED SOLE AGENTS IN GT. BRITAIN & IRELAND FOR BOSCH PRODUCTS MADE BY ROBERT BOSCH A.G. STUTTGART. HEAD OFFICES: LARDEN ROAD, ACTON LONDON, W. 3. MAGNETOS, DYNAMOS, ELECTRIC STARTERS, SPARKING PLUGS, BICYCLE LIGHTING SETS, WINDSCREEN WIPERS. DIRECTORS: P. J.{Mr Johnson W.M.} A.{Mr Adams} CLAUSEN, (BRITISH OF DANISH ORIGIN) J.{Mr Johnson W.M.} W. HOUGHTON. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} JONES. H.{Arthur M. Hanbury - Head Complaints} P. BAZELEY DIRECTION INDICATORS, HORNS, LAMPS, FORCED LUBRICATION EQUIPMENT FOR GREASE AND OIL, ELECTRIC TOOLS. GLASGOW: 222, BOTHWELL ST.{Capt. P. R. Strong}, C. 2. PHONE: CENTRAL 3154. GRAMS: ELECBRIGHT, GLASGOW. BEC/DO Handwritten: WST 1st MAY 1934. Messrs. Rolls Royce Ltd, DERBY. Dear Sirs, AERO SPARKING PLUGS. We are much obliged for your letter of the 27th ultimo ref: Hs{Lord Ernest Hives - Chair}/Wst.6/MA, and should be glad if you would let us know in the first instance whether you are requiring plugs with 18 m/m metric thread or 12 m/m thread. Awaiting the favour of your reply, we remain, Yours faithfully, BOSCH LIMITED [Signature] | ||