The frame is pretty good (Colombus SL?), but the mix of parts on it does not help its value.
As-is, maybe $350 max, but maybe only if you find someone desperately looking for a Basso frameset to buy it. Frankly, the bike, as-is, would yield more money if sold parted out....
Cleaned up, overhauled with new tires and other expendables and upgraded to a more matched up, higher end component gruppo (At least maybe, full Nouvo Record), I think, you can push the value another 150 - 200 bucks, easy....
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72 Line Seeker
83 Davidson Signature
84 Peugeot PSV
84 Peugeot PY10FC
84 Gitane Tour de France.
85 Vitus Plus Carbone 7
86 ALAN Record Carbonio
86 Medici Aerodynamic (Project)
88 Pinarello Montello
89 Bottecchia Professional Chorus SL
95 Trek 5500 OCLV (Project)