Uncommon Christy Mathewson Sepia Tone Hall of Fame plaque postcard signed on the front by Eddie Collins in blue fountain pen. Signature rates 8 out of 10. Collins is one of the most elusive players to locate in the form of a signature example on this medium. Despite the postcard being Mathewson and not Collins it remains one of only a scant few of any type existing within the hobby. Encapsulated by PSA/DNA (7 NM): NM-NM/MT