Christy Mathewson – PM1 Pin Pose, 1913Christy Mathewson at the Polo Grounds in New York in his PM1 pin pose.PM 1 Pin1911-1915 Images, Agencies, Christy Mathewson, Collections, Hall of Famers, New York Giants, Photographs, Photos used for Cards, Players, Teams, Underwood & Underwood Christy Mathewson, New York GiantsPhotographer/AgencyUnderwood & UnderwoodImage Date1913Print DateOriginal print c. 1913Notes/Stampings on ReversePeriod Underwood stampCard/Publication UsePM1 pinLocationUndeterminedDimensions6.5 x 8.5 in.MediumPhotograph - gelatin silver printProvenanceUnknownStatusDeaccessionedShare