1-7/16x2-5/8". 1909-11 T206 Baseball is called "The Monster" for good reason. It's one of the most widely-collected sets of any era. T206 also contains the single most famous card in the hobby, one recognized even by non-collectors. While most cards are easily obtained, the release has some very scarce options, with 16 back varieties in all, that are led by the nearly-mythical Honus Wagner card.

Christy Mathewson was a Major League Baseball right-handed pitcher, who played 17 seasons with the New York Giants. Mathewson was top 10 all-time in most pitching categories including wins, shutouts, and earned run average. He was inducted into the National Baseball Hall Of Fame in 1936.