Hey everyone, I've recently purchased an older Bianchi frame "Campione Del Mondo" I believe is the name of the frame as well. On the head tube what I believe is the serial number "4B29370" is printed. I know that Bianchi serial numbers aren't really understood, but does the 4 mean it's likely a 1984? The only original component still on it when I got it was a two part campagnolo pump bracket, if that could help date it. I've posted a couple pictures but could post pictures of any other part if it would help
Thanks a ton!