2023 Spring Classic - Sports Memorabilia Auctions
Oddballs – Page 5 – SABR's Baseball Cards Research Committee
SABR's Baseball Cards Research Committee – Page 16
Mark Armour – SABR's Baseball Cards Research Committee
Grey Flannel Auctions - Summer Games eCatalog #52 by greyflannelauctions - Issuu
rare vintage mark mcgwire - Gem
Oddballs – Page 5 – SABR's Baseball Cards Research Committee
Lot Detail - 2016 Mark McGwire Game Used San Diego Padres Home Throwback 80th Anniversary PCL Uniform (Jersey and Pants) From 9/7/16 Vs Red Sox (MLB Authenticated)
Vintage Mark McGwire National League All Star Game Baseball Jersey Authentic
Mark Armour – SABR's Baseball Cards Research Committee
Calaméo - 2017 May
Sports Card Plaques
2023 Spring Classic - Sports Memorabilia Auctions
Oddballs – Page 5 – SABR's Baseball Cards Research Committee
Mark McGwire Original Vintage Sports Plates for sale