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Triumph 3HW MCR1.

Triumph 3HW MCR1 regulator box,this one has most of its original brown paint,it is dated 1 44 which is on the cover and also on the inside,I think these are similar to the 16H ones,except that the 3HW has a vee and the 16H is more oval where it clamps onto the frame (larger diameter frame tube on 16H).

Re: Triumph 3HW MCR1.

Steve, according to the Lucas lists, the CVCs had identical part numbers on pre-war Nortons and smaller Triumphs. I don't imagine that they would have changed during wartime. The only rounded frame cutaway that I've seen was on a post-war dated example. Photos of Nortons show the triangular cut.

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