In 1936 he was among the first five players to be elected to the Baseball Hall of Fame and the only one posthumously. He had been exposed to chemical weapons during the First World War and had died in 1925 aged 45.
His technique was much ahead of his time. A rotating effect which he named the fadeaway made the ball more difficult to counter. In October 1905, his team of the New York Giants won a landslide victory in the World Series, a then recent championship that opposed late in the season the winning teams of the two main Leagues.
The Giants are celebrating their deserved victory. Matty has his bat signed by his teammates and his manager. He did not used to keep for himself the memories of his games. When he went back home in Pennsylvania, he presented the bat to a friend. The prestigious piece of equipment remained in the same family until 2013.
This bat of Hillerich brand is graded GU10 by PSA/DNA and A10 by MEARS and the signatures have been authenticated. It can not be better. It is estimated $ 500K for sale by Goldin in Chicago on July 31, lot 40. Here is the links to the release posted by Auction Report and to the website of the auction house.
The catalog states that game used bats from that time are as rare as hen's teeth, and it is the only one known to be related to Christy Mathewson.