I'd say it's a Gran Sport or Sprint, based on the Aelle tubing, but yours doesn't have the crimp in the chainstay, like the catalog models. My mystery Ciocc had no decals when I got it, but I figure it's a Competition SL frame, as there's only chrome on the chainstay (also not crimped) and the tubing is consistent with SL (i.e. 27.2 ID). Looks like a nice bike, though. And it's my size...