Collection: Baseball Signed Memorabilia

About This Item Hand-signed by MLB legend Dennis Martinez Features "El Presidente" inscription Official Rawlings Major League Baseball Authenticated by JSA with a Witnessed COA

About This Item Hand-signed by Detroit Tigers legend and Hall of Famer Alan Trammell Authenticated by JSA with a Witness Certificate of Authenticity High-quality custom jersey featuring embroidered name and numbers Size: XL

About This Item Hand-signed by Hall of Famer Vladimir Guerrero Custom Los Angeles Angels style jersey Size: XL Authenticated by JSA with a Witnessed Certificate of Authenticity

About This Item Hand-signed by former New York Yankees pitcher Joba Chamberlain Authenticated by JSA with a Witnessed Certificate of Authenticity Customized New York Yankees style baseball jersey Size: XL

About This Item Hand-signed by Hall of Famer Jim Thome Custom jersey featuring stitched name and numbers Authenticated by JSA (Witnessed Protection Program) Size: XL

About This Item Hand-signed by Montreal Expos legend Dennis Martinez Includes JSA Witness Certificate of Authenticity Custom jersey featuring stitched name and numbers Size: XL

About This Item Hand-signed by MLB legend Dennis Martinez Inscribed "PG 7/28/92" to commemorate his perfect game Authenticated by JSA Witnessed COA Custom Montreal Expos blue jersey style

About This Item Hand-signed by Hall of Famer Vladimir Guerrero Custom Montreal Expos jersey Includes JSA Witness Certificate of Authenticity Jersey size: XL

About This Item Hand-signed by New York Yankees pitcher Joba Chamberlain Features "09 WS Champs" inscription Includes JSA certificate of authenticity Custom Yankees style jersey, size XL

About This Item Hand-signed by MLB legend Dennis Martinez Includes JSA Witness Certificate of Authenticity Custom Baltimore Orioles jersey style (Size XL)

About This Item Hand-signed by 1989 World Series MVP Dave Stewart Includes JSA Witness Certificate of Authenticity Stitched custom Athletics style jersey in size XL

About This Item Hand-signed by Oakland Athletics legend Dave Stewart Authenticated by JSA with a Witnessed Certificate of Authenticity (COA) Custom green Oakland Athletics style jersey Size: XL

About This Item Hand-signed by pitcher Steven Matz Inscribed with "MLB Debut" Original ticket from his Major League debut on June 28, 2015 Witnessed and authenticated by Lucky's Sports Cards and Memorabilia (LSCM)

About This Item Hand-signed by Hall of Famer Nolan Ryan Features the iconic "Bloody Lip" image in a 16x20 format Includes a certificate of authenticity and hologram from PSA Authenticated by Denver Autographs

About This Item Hand-signed by MLB legend and Hall of Famer Nolan Ryan Captures the iconic 1993 mound confrontation with Robin Ventura Large 16x20 high-quality photograph Includes PSA Certificate of Authenticity and hologram

About This Item Hand-signed by St. Louis Cardinals legend and Hall of Famer Stan Musial Official National League (ONL) baseball Includes a certificate of authenticity from Beckett Authentication Services (BAS)