Full chrome Colnago Super on Classic Rendezvous
 

Wondering if anyone has any information about the full chrome colnago super on classic rendesvous? Curious as to how many were made? Were they factory done? Special order? Done for a show or expo?
In my searching, which has been quite extensive, I've run across a few others, but again, not much information. Two of the examples were from 1976, two from 1977 and another from 1981 or so. Thanks for your time, Ivan