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A 1971 Pittsburgh Pirates Team Signed Baseball with the key signatures: Clemente, Mazeroski, Stargell, and Oliver is worth about $500.-$700.
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. For more information on team signed baseballs, links to full team rosters, key signatures, and price guide visit the following page from the link I left below.
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ProfessorA 1979 Pittsburgh Pirates Team Signed Baseball with the key signatures: Stargell, Blyleven, Parker, Tekulve, Candelaria, and Madlock is worth about $275.-$375.
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. For more information on team signed baseballs, links to full team rosters, key signatures, and price guide visit the following page from the link I left below.
A 1977 Pittsburgh Pirates Team Signed Baseball with the key signatures: Stargell, Oliver, Parker, Tekulve, and Gossage is worth about $125.-$200. 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 number of signatures, and key signatures acquired. The more complete the baseball with key signatures the more valuable. Rawlings did not start making the official World Series game baseballs until 1978 changing logos and the design each year since. If the baseball you have is a game ball from the 1977 World Series then it could devalue the signatures based on the condition of the baseball. A 1977 Official National League baseball will add value if in clean near/mint condition. 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 Related Links below.
A Billy Martin single signed baseball is worth about $300.-$450.
Value is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the signature. Signatures that have not been properly authenticated could sell at half the market value or less. Add for inscriptions.
In a recent (May 2008) auction a Billy Martin single signed baseball sold for $448.13 For more prices on single signed baseball see Related Links below.
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.
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.
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