What is worth of 1951 score card with Stan musial autograph?

Stan Musial Signed scorecard

A Stan Musial Signed scorecard would be compatible in value (or less) with an 8x10 photo and would be worth about $50.-$100. Price will vary based on the condition of both the signature and scorecard, and the type of authenticity that accompanies the signature. Part of the value will be determined by how well the signature displays and stands out in contrast to the cover of the scorecard. Signatures that have not been properly authenticated could sell at half the market value or less.