It should be a 1987, Italian manufactured, Bianchi Limited. The frame is legitimate Bianchi and the rectangular CdM decal indicates 1987, while the Gipiemme dropouts are typical of Italian manufactured Bianchi of this era. The Shimano New 600EX components are correct for that year's Limited, though the rear derailleur is a later 600 Ultegra upgrade and it has replacement pedals.
Edit: The serial number should corroborate the model year.
Last edited by T-Mar; 08-04-21 at 02:15 PM.