Among the finest large-format baseball collectibles published in the early part of the 20th Century was the 100-piece series of sepia-toned supplements issued by The Sporting News. Initially issued in a size of about 7-1/2" x 10", by late 1909 the size evolved to about 8-1/2" x 10" with the team photos issued in a 16" x 10" format. The series was begun with the insertion of a supplement in the July 22, 1909, issue of TSN. One supplement was issued with each week’s paper through April 7, 1910. There were several gaps over the course of the next several years, until the final piece was issued with the TSN dated Dec. 11, 1913. Most of the supplements feature full-length poses of the players. Each is labeled “Supplement to The Sporting News” with the issue date at top. At bottom is a box with the player’s name and team. Backs are usually blank, but some supplements are found with colored advertising on back for various other collectibles from the newspaper.