Telecine Good Morning Good Morning and welcome to the forums. Sadly it's often not possible to tell exactly what these older models are because many have been upgraded for any number of reasons. Some people seem to think that if it's Celeste it must be all Campagnolo and set about upgrading even if the Campanutella gear is actually a downgrade or doesn't mesh well with other parts. The Bottom bracket and crankset are certainly not original becaue I don't think any factory would mount a CampI crankset on a Ofmehga spindle (at one time Ofmega used a unique taper on their spindle that was not compatible with other cranksets)
Assuming the decals are original I would likely say this is likely a '84 Alloro or Nuovo Racing that has been rebuilt by previous owners. Whatever it is after a good overhaul, waxing and some new cables and tires it is likely to a great riding bike.
Photo album
https://www.bikeforums.net/g/picture/29925868
__________________
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk