Value is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the baseball. Prices may also vary based on the amount of signatures, and key signatures acquired. The more complete the baseball with key signatures the more valuable.
In a recent auction a 1951 New York Yankees Team Signed Baseball sold for $3,585.00 The key to the value of this baseball is the Mickey Mantle & Joe DiMaggio Signatures. This is the only year the two played together and would appear on the same ball.
Years ago it was a common practice to shellac the baseball to protect the signatures. This practice stopped when it was realized that the balls would turn yellow, crack, and peal off. With some of the earliest signed baseballs, the value is not hurt as much as with newer balls because the Autographs are rare. The Shellac on the 1951 Yankees baseball will hurt the value depending on the degree of coating.
If the signatures are not properly authenticated the baseball could sell at half the market value or less. For more information on team signed baseballs, links to full team rosters, key signatures, and price guide see Realted Links below.
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Value is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the baseball. Prices may also vary based on the amount of signatures, and key signatures acquired. The more complete the baseball with key signatures the more valuable.
If the signatures are not properly authenticated the baseball could sell at half the market value or less.