That is the first marinoni I've ever seen with the paint job. Are you sure that one has "fast back stays"? In 1991 (I think) Marinoni transitioned from capping the seatstays to mitering them to butt up against the seat lug.

I'd like to see more of that blue Marinoni.

my 1992... not fastback but as I attempted to describe above.., not the best photo of it but all I got ATM.