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thanks for posting this cycle

Mercier did models for differing markets

since you are in the UK the machine is likely a european or a UK model
most readers of this forum have more familiarity with the company's products done for the North American market

from your text information my wild guess it that it may date from the late 1960's

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photos -

on your member page here at the forum there is a place where you can create a "member photo album"
there is no minimum post requirement in order to do this

members can visit the album and add the images there into the discussion thread

look forward to seeing your bike


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