Yeah, You guys are right. I took a quick glimpse of David's Mizutani pictures and didn't even read the text. If it was a Super ( It's missing critical decals, but it looks like Super on the downtube) it wouldn't have a Maxi crank or Suntour derailleurs. Those Tourney brakes look pretty much the same as the center pull Dura Ace that followed them briefly. I've had two of these and still have one thanks to Sarah at Old Town Cyclery in KC. They are not in the same league as 3 Rensho, and last I knew they made a strange folding bike for the home market. My current Super is the only Japanese bike I own. It's all Dura Ace (Crane rear mech) built in 1975. There were lesser models, but the names escape me.
Chris "chagrined" Van Scoyk