A utility man for the Athletics during their 1930 and 1931 pennant winning seasons, the former of which saw them capture the crown, Eric McNair is the Connie Mack prodigy you never heard of and actually debuted for the A's in 1929 with a cup or two of coffee as a 20-year-old. Signed as "E. McNair" it looks like something sticky affected the signature (or it was signed in a spot with a gum stain) which also meanders a little on a 1939 Play Ball with scrapbook remains on the reverse.  McNair died of a heart attack in 1949 after a somewhat tragic life, making this PSA/DNA Authentic signature a particularly rare combination. The card originates from the Shibe Park collection of autographed cards, an original owner collection carefully collected by a teenage boy who, in 1939 and 1940, obtained many autographs from players arriving at the train station near Shibe Park, and continued for many years to obtain signatures in person and through the mail.