Exceptional Joe McCarthy 1956 Single Signed ONL (Giles) Baseball. McCarthy is the Yankees all-time leader in wins and holds the record for most World Series titles by any manager in history with seven. He was a very tough signature to obtain even when he was alive, as most team balls unfortunately bear clubhouse signatures. There are only a tiny handful of single signed baseballs known to exist. This example stands among the finest of its kind. The blue ballpoint signature rates approximately 8/10 in strength and is inscribed "1956" highlighting the Yankees 1956 World Series Championship. The Official National League (Giles) ball is clean throughout with perfect factory stampings. All things considered this is one of the finest McCarthy balls known to exist! Includes JSA LOA.