What is the value of a baseball signed by the 1973 Detroit Tigers?
According to the collector’s guide “Team Baseballs,” your ball is worth $150-200, but this value can be greater or lower depending on players present – in particular the inclusion of manager Billy Martin and/or Norm Cash – and the all-important overall condition of the ball and autographs. Other key factors include type of ball, whether there are any “clubhouse signatures” (autographs signed by ballboys, attendants, etc), and number of signatures present. Martin’s and cash’s signatures were often signed by clubhouse attendants, so the authenticity of their autographs are typically a big factor.
