Excellent semi-glossy 15 x 19 silver gelatin photo of Williams in a full-length post-swing pose, signed in blue felt tip. The superb image depicts the Hall of Famer as a 20-year-old member of the minor league San Diego Padres, circa 1937-38. Double-matted and framed to an overall size of 21 x 25. In fine condition. Accompanied by a certificate of authenticity from Green Diamond, and a full letter of authenticity from PSA/DNA, with labels from each affixed to lower right corner of photo.