Joined: Sep 2005
Posts: 2,994
Likes: 300
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 am intrigued by your bike. It has a pump peg or nipple on the steerer tube below the top tube and two sets of water bottle bosses sugesting it is a later 80's build yet it has above the bottom bracket cable guides suggesting a much earlier time frame.
The width of the bottom bracket is 68mm suggesting that it is a Japanese Bianchi - not that there is anything wrong with that. It just makes the bike worth a little less.
With a Piaggio decal I would estimate an '85 or '86 frame build.