This '98 Supreme XL90 was my Christmas gift. It was by Peterson collector, Mark Irwin, and will be used for the example of this shape in his upcoming Peterson book. I'm a fan of the Peterson 9BC and have two pre-Republic examples of that shape. The XL90 is their successor in the Peterson catalog. This one is no longer unsmoked, and I enjoyed a bowl of MM965 in it on Christmas afternoon. This is my first Supreme grade Peterson. A full write up on the pipe is here:
http://rebornpipes.com/2015/12/25/peterson-supreme-xl90-1998-review/
http://rebornpipes.com/2015/12/25/peterson-supreme-xl90-1998-review/