1987 Topps Tiffany Mark McGwire #366, graded PSA 9 with a PSA 10 autograph. This signed baseball card comes from the 1987 Topps Tiffany set and is authenticated and encapsulated by Professional Sports Authenticator. It presents McGwire in the Topps Tiffany issue from the late 1980s, a recognized baseball card release for collectors building focused player or set runs.