I knew nothing of these irons, did a bit of research, here's the scoop:
Eye2+ No+ (Plus No Plus). New head design featuring a "scalloped" sole. The scalloped refered to the design process where metal was removed from the center of the sole and redistributed in the inside of the cavity near the toe. Additional design features included a more rediused sole, a modified bounce and grind, a slightly thinner topline, a slight increase in clubhead size, a little higher and more rounded toe, and slightly stronger lofts. The grooves were the same as the "Square Groove" model. Made from the fall of 1989 to the spring of 1990.
These irons are 17 years old in 3Balls good condition and were sold today for $152.87 CDN. Amazing stuff for an old set of irons.