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On the Record model rear mech one "trade story" I heard from a local distributor's representative BITD was that it had gone out of production and Teodoro asked Tullio to put it back into manufacture for a model he wanted to use it on. Unfortunately the story did not come with a specific date for this action.
If correct, it might explain the difference between the early and late type Record rear mechs. Have no idea as to how accurate this account may be. Just passing it along FWIW.
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