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, led by the nearly-mythical Honus Wagner card.

William Alexander O'Hara was a Major League Baseball outfielder. He started his professional baseball career in 1902 and played for the Baltimore Orioles from 1905 to 1908. He then played in the National League for the New York Giants and St. Louis Cardinals before finishing his career with the Toronto Maple Leafs.