I'm sorry, Roger – SABR's Baseball Cards Research Committee
2010 Tristar Obak: The History of Baseball in a Card Set – SABR's Baseball Cards Research Committee
SABR 50 at 50: Baseball Cards – Society for American Baseball Research
2010 Tristar Obak: The History of Baseball in a Card Set – SABR's Baseball Cards Research Committee
Errors / Variations Gallery - 2010 TriStar Obak Baseball
2010 Tristar Obak: The History of Baseball in a Card Set – SABR's Baseball Cards Research Committee
Tristar Baseball Sports Trading Cards & Accessories for sale
2010 Tristar Obak: The History of Baseball in a Card Set – SABR's Baseball Cards Research Committee
2010 Tristar Obak: The History of Baseball in a Card Set – SABR's Baseball Cards Research Committee