• I have noticed the chainstay stops are unusually placed as well:

    The extra stop could be for the front tension arm of an Osgear.
    Here's a 1949 Paris with an Osgear with tensioner cable:
    http://www.classiclightweights.co.uk/bikes/paris-eric-rb.html

    My frame has Agrati drop outs instead of Osgear drop outs. I think they are original going by the paint, but I am wondering if they have been replaced as there is no serial number on the frame, only on the steerer tube.

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