Whilst still in "Blanchard fettling mode", I decided to have another look at my Blanchard 1000. The tube which extends downwards from the burner and through the spirit cup heat acting as a heat sink, is broken off and needs repair but I've noticed that the burner is slightly different to others I have. On this particular burner, the sleeve in the centre of the spirit cup extends right up to the burner head and is silver soldered in position but what is left of the heat sink is not fixed to the spirit cup. I've also noticed that the spirit cup seems to be made of a lighter weight brass. To my mind, it seems unlikely that it was made like this and that it is in fact, a repair or modification. Can anyone confirm my suspicions please ? Henry.