Cards made of leather!
Or at least leather textured something. This is a two ply card. The back is regular card stock. The background of the front is either real leather or imitation leather. There are cut outs in the background where the webbing of the glove is. In the photo, the black area below the foreground glove is also cut out. The player name and the Stadium Club logo are in gold foil.
Mark played for 16 years, the first 13 with the Cubs, the last three with the D-Backs. I never got used to seeing him in a D-Backs uni. He was a 4-time Gold Glove 1st baseman and a 3-time All-Star.
His life-time fielding percentage is 0.995. 1996 was one of his best years with a fielding percentage of 0.997. How good is that? He had 1,259 put-outs, 107 assists and only 4 errors. He was also a career 0.303 hitter with 173 home runs.