Extraordinary front/back combination pairing the popular portrait image of Christy Mathewson with the extremely rare Piedmont Factory 42 reverse. As noted elsewhere in this auction the Factory 42 reverse is estimated to account for less than 1% of the available T205 cards; extensive research conducted by T205 scholar Joshua Levine and published in the Spring 2007 issue of SGC Collector supports the assertion that these backs are extremely scarce. Difficult front/back combinations are in high demand among collectors; examples such as this featuring top-tier Hall of Famers are simply not often seen. An outstanding opportunity.