Patrick---I do not collect Venezuelans per se but have collected one example from each year to go with my corresponding Topps sets. The 66s were one of the hardest for me to find. They look much alike and no Spanish wording. The cardboard does seem darker and they seem to lack gloss on the front. The biggest difference for me was the different shade of color on the backs, The Hart card below is my Venezuelan for that set. I know we have betteR experts here who can likely be more specific