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thanks very much for posting; shall look forward to following along
the metric threading fits right in with a Saavedra product
the forum has had a number of discussion threads on Cosme Saavedra and Saavedra bicycles and components, some of the bicycles produced bore the Roger marque
forum member
bikemig & I own Roger badged machines produced in the early 1970's and kitted with Gambato brand fittings
the company maintained a distribution office in Los Angeles, California at one time:
Saavedra
here are some forum posts from the past -
https://www.bikeforums.net/search.php?searchid=12458232
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one of the founders of the Basque marque BH - Beistegui Hermanos, had the first name of Cosme
so you might wish to explore a possible Spain origin for the machine
http://es.wikipedia.org/wiki/BH_(empresa)
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