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lug pattern BOCAMA Competition 75 -


(offered both with and without cutouts)

fork crown Vagner PL + -



remains of tubing transfer suggest a set from Ateliers de La Rive, as stated

headset strongly indicative of a CH origin (may be a product from EDCO)

not Allegro, Cilo, Juvela or Mondia

find nothing bearing a close resemblance at the Swiss Bicycles site:

http://www.swissbicycles.com/

one marque which might merit exploration is that of Mairag; do not wish to suggest an identification -

http://www.classicrendezvous.com/Switzerland/Mairag.htm

frame appears to have commenced its existence as a one or two down from the top sort of model

possible investigation might be advanced if tubing diameters and threading could be provided


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addendum:



are you able to make out the marking here on the top of the drive side of the bottom bracket shell? appears to be there in an oval just aft of the braze-on.

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