The Sports Bookie: Bob D'Angelo's Books & Blogs - Bob D'Angelo's Books & Blogs
1993 roberto alomar Values - MAVIN
1997 Cal Ripken Jr. Game Used and Signed Louisville Slugger P72 Model Bat Used on 6/27/97 - Broken Bat Single (Ripken LOA & PSA/DNA GU 8.5)
Albert Pujols Signed Marucci Player Model Baseball Bat Inscribed Game Used 12' (PSA LOA & MLB Hologram)
1993 roberto alomar Values - MAVIN
Calaméo - 2017 November
Past Sports and Collectible Auctions
PSA in the News - PSA Blog
Sammy Sosa Game Used Rawlings Professional Model Baseball Bat - PSA/DNA
PSA in the News - PSA Blog
1961 Nu-Card Scoops Highlighted Game's Greats, Big Events
Postcards, Photopacks, etc. – Page 2 – SABR's Baseball Cards Research Committee
Meat – SABR's Baseball Cards Research Committee
Joey Votto PSA ProBatFacts