| This is a
Mark McGwire Autograph Sample signed on a Busch Stadium
signature was Authenticated by Steiner Sports (pictured
McGwire single signed baseball is worth between
Mark McGwire signed Photo
is worth about $60.-$120. Larger and more desired photos could
sell for more. bats, uniform Jersey's and equipment sell
at a higher price due to the higher cost of the item,
rarity and display.
is based on average prices of recently closed auctions.
Prices may vary based on condition, and the type of
authenticity that accompanies the baseball. Signatures
that have not been properly authenticated could sell at
half the market value or less.
such as "70" will sell for more. Personal
Inscriptions like Good Luck Chuck" will sell for
Don't Forget to keep your
Autographs Away from a lot of Light, especially sunlight! Even reflected sunlight will take its toll.
conditions for display would be indirect lighting,
at a room temperature of 65 - 70 degrees, and 50%
humidity. Always check your signatures periodically for
signs of fading or deterioration, and avoid excessive
Signed Baseball Price Guide for values on
a Mark McGwire Autographed seat back at