Joined: Sep 2005
Posts: 3,006
Likes: 306
From: Hervey Bay, Qld, Australia.
Bikes: Colnago (82, 85, 89, 90, 91, 96, 03), 85 Cinelli, 90 Rossin, 83 Alan, 82 Bianchi, 78 Fountain, 2 x Pinarello, Malvern Star (37), Hillman (70's), 80's Beretto Lo-Pro Track, 80's Kenevans Lo-Pro, Columbus Max (95), DeGrandi (80's) Track.
I'm only guessing but here is my assessment:
With that serial number layout I think it looks like a Piaggio era mid range racing model. I would say it was made in 1982 and probably at the start of the year. The RH rear dropout was from the very late 1970's and could be found on bikes manufactured in the early 80's too. The two small holes are to attach Campagnolo's Portacatena derailing system which would only be found on a road racing bike. I think the top Bianchi models, from that era, and made in Bianchi's race department had a different serial number system so I'm suggesting your frame could be a Campione del Mondo model or a Nuovo Racing model or something similar.