Off the top of my head, lipped fixed cup, thin, rifled so maybe chorus or croc d’aune . Not sure what was stamped on the axle though. Maybe a visit to velobase. Won’t let me in at the moment. Browser says issue with certificate.
Thanks, yes looks like there's something wrong with Velobase
I think 70 refers to bb shell width.
@midlife started
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Off the top of my head, lipped fixed cup, thin, rifled so maybe chorus or croc d’aune . Not sure what was stamped on the axle though. Maybe a visit to velobase. Won’t let me in at the moment. Browser says issue with certificate.