Interesting frame you don't see very often, now on ebay:
I'd guess this was made by Bianchi, who took over the Chiorda marque in what? 1971 or something?
Looks like a clean mid-line frame to me. The top Chiordas made by Bianchi were much more refined-looking, as shown on Dale's site.
Carsten must have been having a late night when he put the frame up..note the novel spelling of *Chiorda*