While not as popular as some of the earlier caramel issues, E106 cards are difficult to obtain, and do feature cards that refer specifically to the Federal League.  This example is a collector-grade Eddie Collins, which somehow managed a PR-FR grade from PSA despite an upper-right corner clip, a heavy crease, and a hole punch directly in the middle of the card (some young collectors would carry their cards tied together, with a string right through the middle).  Still, an important card of a Hall of Famer from a tough issue.