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Corey Kluber No Hitter Un-Autographed Gateway Stamp Envelope - New York Yankees

Chris Davis 53 Home Runs Un-Autographed Gateway Stamp Envelope - Baltimore Orioles

Vladimir Guerrero Autographed Baseball in Canada First Day of Issue Gateway Stamp Envelope

Nolan Ryan Hall Of Fame - Autographed Gateway Stamp Cachet Envelope

Dave Stewart No Hitter Autographed Gateway Stamp Envelope - Oakland A's at the Toronto Blue Jays

Nolan Ryan JSA Autographed 5th No Hitter Gateway Stamp Commemorative Cachet Envelope

Joe Carter & Mitch Williams JSA Autographs 1993 World Series Game 6 Gateway Stamp Commemorative Cachet Envelope

Nolan Ryan Autographed 5,714 Career Strikeouts Gateway Stamp Commemorative Cachet Envelope

Nolan Ryan Autographed Career Strikeout Record Gateway Stamp Commemorative Cachet Envelope

Nolan Ryan Autographed 4,000 Strikeouts Gateway Stamp Commemorative Cachet Envelope

Vladimir Guerrero Autographed Ballpark at Arlington Gateway Stamp Envelope

Vladimir Guerrero Autographed Fulton County Stadium 25th Anniversary Gateway Stamp Envelope

Vladimir Guerrero Autographed Anaheim Stadium 25th Anniversary Gateway Stamp Envelope

Nolan Ryan & Reid Ryan Father Son Game Autographed Gateway Stamp Envelope