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high flange hubs you mention appear to be ordinary quality
quick release skewers appear to be sansin matsumoto (sunshine brand)
here is the manufacturer's catalogue page for the frame's ends set
it will help you to determine if fork ends are a match for dropouts
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the roughness of the bottom bracket cutouts suggests they were accomplished by someone drawing around a flexible template with a marking pen and then making the cutouts with a hand held tool such as a die grinder
this suggest that seat stay dimples may have been added by same person at same time
a framebuilder who wished to put cutouts into a bottom bracket shell would have a means of achieving the result more professionally
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should you be able to locate a serial its placement and format may be clues which can possibly advance the inquiry
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the present build is unlikely to be the cycle's first; it may be the second or it could be the n-th
you have some very nice fittings there such as the Phil Wood bottom bracket, Campag Record saddle pillar, Cinelli model 1A stem & DuraAce components which are paired with some ordinary calibre ones such as headset, brakes, hubs, pedals
this latest assembler may have gotten the frame bare or as a partial cycle and completed it with what they had or could find
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the forum has framebuilder members who shall be able to write more knowledgeably regarding your machine
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