Topps – Page 4 – SABR's Baseball Cards Research Committee
Auction Details Backes Auctioneers
RR Auction: Sports Memorabilia Auction by RR Auction - Issuu
Mark McGwire Gallery - 2017
Hunt Auctions, LLC
Toronto Blue Jays Price List - Supercollector Catalog
Mark McGwire Baseball Cards
1987 Topps / Blowout Buzz
The Snorting Bull: 30 Year Top 50: 1998 Skybox EX-2001