We had originally listed this ball as a 1960s.  We were contacted and told that the Spalding logo on the ball was only used during the late 30s through 940s.  (Thank you again for the information.)

Vintage SPALDING Game Used Football.   Wisconsin Badgers.  Appears that the bladder and laces have been replaced as the ball holds air and the laces are nice and white.  Great game used ball.