My COLNAGO is not "Officially" a "Super'91" but is possibly a "Super Sprint". I described the frame verbally in a reply to the earlier post on the "Super Sprint" model that I found very useful and mine has the same plastic Derailleur cable guide attached to the underside of the "Full Type" (NO cutaway metal) Bottom bracket as pictured above on the green frame.

Cheers!

John G.