The Mystery Rowell

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I posted about this recent acquisition the other day: a 1940's model IC engine by Rowell. Apart from the rarity of these things - only 400 ever made - this one is a bit of a conundrum.  Although I understand the mixing and matching of bits from the two main marks of this beast was not totally unknown, the 141 (Mark I) serial number on the body makes me think that this combo of what appears to be a Mark II body casting (cast, rounded exhaust port vs. the machined, square Mark I) and the Mark I rear plate and venturi; to be a deliberate option on behalf of the maker. There is such a paucity of information out there on these things that I would be grateful for any information that any of my readers could pass on to illuminate the situation. Keep you posted...

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