Mark McGwire 2020 Topps Stadium Club Chrome Signed Baseball Card #96 Auto 10 PSA is a collector-focused baseball collectible featuring Mark McGwire with the Oakland Athletics. The autograph is PSA authenticated giving collectors third-party authentication confidence even without a separate numeric card grade. The autograph grade is 10 an important detail for collectors who value signature strength placement and eye appeal. Stadium Club Chrome pairs premium photography with a chrome finish giving signed examples strong display appeal. Mark McGwire signed cards draw interest from collectors of home run history 1980s and 1990s baseball stars and certified autograph issues. Certification number 150412223 is included for verification. A strong addition for collectors seeking authenticated display-worthy player-focused pieces.