I just picked up a Bianchi last night and I'm trying to figure out that model and year it is. It has a Piaggio sticker on the top of the seat tube and a 022 on the bottom. I couldn't see any decals on the top tube but I could read the serial number = AS312714

The frame is dark green with the lower part of the fork and seat stays/chain stays chromed. There are also double eyelets on the fork and dropouts.
It had sugino VP cranks
Suntour downtube shifters
Suntour front derailleur
Canti brakes

I'll get a photo of the frame tonight or tomorrow.

Thanks
Neil