sincos

Hi all,
Recently picked up a MB Grand Record frame. It was advertised as a 1982, from the catalogs I'm guessing 1980, but AIUI the catalogs have sometimes a tenuous relationship with reality. Headset, BB, and shift levers were included and are Shimano 600 EX, which is consistent with 1980. Bearings will need some service, so the first big question is: what kind of BB am I looking at here? Swiss thread? I know that in a few years around this time they were switching from French to Swiss (and then to English?) I cannot read the S/N on the BB, I may have to strip the rust and repaint to see it. Also it is missing a badge on the HT -- is that the Motobecane M?











The newer GRs are simpler than the ones from the 70s. I'm ok with the simpler lugs (though those Nervex Pros are cool) but I miss the fender eyelets and the Black and red paintjobs. The "Ivory" here is a bit ... plain vanilla. But at least it still has a chain hanger!