I had a "CroMo 400" and it was obviously a frame from the same plant that was making several very similar models of good Japanese bikes at the time. That one looks better than most. I'm guessing the Panasonic National plant, because the paint jobs out of that place were really excellent and durable. I can't see the headbadge, but the 400 I had was probably an '82 or '83 and it had the metal Samurai helmet headbadge, which drove the hipsters nuts. I single-sped it and had no problem selling it, and now sort of wish I'd have kept it.