Authenticated and encapsulated by PSA/DNA, attractive signed 1940  Play Ball card of pitcher Jack Knott, portrayed with the Chicago White Sox.  Though in his 30s, Knott's career was effectively ended during World War II, when he was wounded in combat during the Battle of the Bulge.  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.