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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 a supplier about the dispatch of experimental sparking plugs for a Bentley, requesting a performance report on previous samples.

Identifier  ExFiles\Box 163\5\  img060
Date  17th September 1936
  
TELEGRAMS:
SPHINX, DUNSTABLE
TELEPHONE:
DUNSTABLE 360
PRIVATE BRANCH EXCHANGE.
16011
THE AC-SPHINX SPARKING PLUG Co. LTD.
DIRECTORS: N. F.{Mr Friese} STOCKBRIDGE, W. O.{Mr Oldham} KENNINGTON, C. J.{Mr Johnson W.M.} BARTLETT.
DUNSTABLE
BEDFORDSHIRE
THE SOCIETY OF MOTOR MANUFACTURERS & TRADERS LTD
OUR REF. NFS/GEB
YOUR REF. Hs{Lord Ernest Hives - Chair}/Wst.3/JH.
17th September, 1936.

Messrs. Rolls-Royce Limited,
Derby.

For the Attention of Mr. H.{Arthur M. Hanbury - Head Complaints} E.{Mr Elliott - Chief Engineer} West.

Dear Mr. West,

I have your letter of the 16th instant concerning your further requirements of Sparking Plugs X399 for Bentley.

I find that we have a small further quantity of these experimental insulators available and I am having a further dozen plugs made up and despatched to you as soon as possible: I hope to get them away on Monday next.

Frankly, I would have preferred, before supplying any further plugs, to have had your detailed report on the performance of the first samples, because it might be that this report would cause us to make some small change in the plug design. However, in view of the urgency of the matter I am not letting this delay the despatch of these further plugs, but I do hope that you will let me have a report for our general guidance.

You will recollect that when I sent you the first supply of these plugs under cover of my letter of September 1st, I told you that on high speed work these plugs might conceivably run you into a slight trace of pre-ignition; I am particularly interested in this possibility.

Yours faithfully,

N.F. STOCKBRIDGE,
Managing Director.

MAKERS OF AC SPARKING PLUGS - AC AIR CLEANERS - AC PETROL PUMPS - AC PETROL GAUGES - AC OIL FILTERS - AC OIL GAUGES
  
  


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