My Used Bike guide only starts in 84 with tubing identified for Pinarello, but I'm guessing it is Columbus SL if seatpost is 27.2. Lou Deeter, Orlando FL
Record Equipe 84-86 SL
Gran Turismo 84 SL
Triathlon G.S. 84-86 SL
L.A. Olympic Commem. 84
Columbus Air
Record 85
Montello 86-93 SLX
Treviso 87-93 SL