Description:Christy Mathewson auto. postcard c.1918. World War I era photographic postcard written to Mathewson's wife, Jane Stoughton Mathewson, while serving in the U.S. military during World War I. The reverse of the postcard includes several lines of text and has been signed, "Christy" in black fountain pen. Signature rates 9 out of 10. Includes LOA from JSA: EX/MT-NM