Offered here is the late Payne Stewart's personal tournament-used Scotty Cameron Newport Beach Prototype putter. This welded long neck prototype Newport Beach putter is stamped with Payne Stewart's initials "P.S." Both Payne Stewart's initials, and Scotty Cameron's name on the face have a unique red paint fill. 

This putter comes from Payne Stewart's brother in law, Australian professional golfer Mike Ferguson. It comes with a handwritten letter of provenance from Ferguson, as well as a COA from Scotty Cameron. According to Ferguson, this putter was given to him by Payne Stewart in 1998, and that it was used by Stewart on the PGA Tour including in Major Championships. 

Certificate of Authenticity from Scotty Cameron

***UPDATE*** Payne Stewart's putter has been matched to the 1998 US Open and 1998 PLAYERS Championship! We were initially thrown off by the red paint on this putter, but we reached out to the owner of this putter, Payne Stewart's brother in law, and he informed us that he and Payne used red nail polish for paint fill on their Scotty Cameron putters!