2004 UD Sweet Spot Sweet Threads #'d to 85
1996 Leaf Signature Extended Century Marks
Not numbered but from an established benchmark of 100 issues.
1998 Leaf Fractal Materials Z-Axis #'d to 50
This was one of the most confusing issues ever created. It was YEARS before I figured what was what.
1997 Donruss Preferred Precious Metals #1
Note: Made from 1 Gram of Fine Platinum. And like the '96 Century Marks it's not numbered. But according to Donruss there were 100 issued.