Gracie
Retro Guru
With the aero tubes it is definitely the full blown Turbo model. As for serial numbers mine doesn't even have one - just the seat tube and top tube lengths stamped under the bottom bracket. I've seen more than one seller on eBay thinking the top tube length is the SN. I would say you've nothing to lose by firing off an email to Daccordi with the serial number and asking them.
Mark.
Thanks Mark I really appreciate the help.
It is without any doubt a Turbo frameset and would just like to pin it down to a year or period. My first thoughts of 91/92 now seem too modern given my afternoon's research, and somewhere out there is the answer..
I have though found pictures of a identical but more stunning Turbo frameset in the states, with a healthy price tag of $1899.99, that shows the markings on the underside. Just 56 which I guess is for the Seat Tube in CM and 555 which could be the Top Tube in MM.