The following is a 300W/4000K ball being offered for sale at Grey Flannel. I am interested in the ball, but know little about Grey Flannel (although it seems to get solid reviews at GUU) or prices for other Clemens 300W/4000K game used balls sold to date (if in fact there have been any). I'd appreciate your thoughts on this item, as well as third-party authenticators I might have look at this ball as well (I assume Simon or PSA).
By the way... the "great provenance" mentioned below appears to be a Fed Ex receipt directly from Clemens (including multiple items).
Thanks for the assistance,
-Lee
(1761) 2003 Roger Clemens NY Yankees 300th Win/4,000th Strikeout Signed Baseball



PRICE : 4,750.00 STATUS : Available DESCRIPTION : On Friday June, 13th 2003 Yankees pitcher Roger Clemens fanned 10 batters for a Yankees 5-2 victory in an inter-league showdown against the St. Louis Cardinals. In that game “The Rocket” amassed his 300th career victory and his 4,000th career strikeout. Offered here is an O.M.L. Selig “Yankees 100th Anniversary” baseball that was used during this historic game. Roger has signed the ball on the sweet spot with inscription “300 Ws/4,000 K’s” in blue pen, rating a strong 9. Accompanied by great provenance, please call.
By the way... the "great provenance" mentioned below appears to be a Fed Ex receipt directly from Clemens (including multiple items).
Thanks for the assistance,
-Lee
(1761) 2003 Roger Clemens NY Yankees 300th Win/4,000th Strikeout Signed Baseball




PRICE : 4,750.00 STATUS : Available DESCRIPTION : On Friday June, 13th 2003 Yankees pitcher Roger Clemens fanned 10 batters for a Yankees 5-2 victory in an inter-league showdown against the St. Louis Cardinals. In that game “The Rocket” amassed his 300th career victory and his 4,000th career strikeout. Offered here is an O.M.L. Selig “Yankees 100th Anniversary” baseball that was used during this historic game. Roger has signed the ball on the sweet spot with inscription “300 Ws/4,000 K’s” in blue pen, rating a strong 9. Accompanied by great provenance, please call.
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