Brian and Carl, thank you both very much for your input.
Carl, when I showed Stuart Towner (who is attempting to source the magneto for me) the photographs that you very kindly sent me, his advise was the same as Brians (ie that it is a V-Twin magneto, possibly, as you say, adapted for racing).
So, as I am intending run my TT Rep without lights (although the records indicate that they were actually fitted by the factory), I wish to find a magneto that would have been fitted to a 1930 TT Rep. Brian’s comment that it should have the large taper with the male thread and nut helps (thank’s again Brian) and I now need confirmation of the model of BTH (I definitely want a BTH rather than a Lucas item). So, should it be M2 or MC2 ?
Chris.
