Currently chasing this frame for the next time I visit my native city, Buenos Aires.
Privitera was a well respected Pinarello copycat, all the steel and aluminium frames were handmade with either Columbus or Deda. They were making monobox and monostay aluminium/carbon hybrid by 2002/2003. I've had one frame which weighted 1.230 kg with fork and BB.
Now the only make carbon frames, but you can take a look at their old page here:
https://web.archive.org/web/20040213090102/http://priviterabike.com/bicicleta3.htm 