When I attended the grand in 1969 and went to the old display room. I looked through the pictures of past winners. An informal count seemed to me to be evenly spilt between model 12's and Ithaca trap guns with the odd ljutic and others in the later years.
No perazzis until that year in fact the first one showed because my wife won the preliminary handicap. It caused a bit of a stir. Frank Little asked my wife if he could try it on a practce trap. He returned with a grin and remarked I am getting one of these! Ithaca was interested in it also as they hadn't received one yet and hers was marked Ithaca. I played dumb easy enough. The truth was it had been matterilis (sp) gun at the mexico city olympics . You know how it is when a guy needs a little play money, so it came home instead of going to Ithaca.