A 1970 San Francisco Giants Team Signed Baseball with the key signatures: Mays, McCovey, Marichal, Perry, Bonds, and Foster is worth about $175.-$275. 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 see Related Links below.
$1200.00
In the low 1,000s
On Amazon, Vin Scully autographed baseballs can go for as much as $295.80
About $1,000 to $3,000
Close to $300
$50
$800,000,000
Anywhere from $20 to $40.
The autographed baseballs are valued at a price between $40 and $60. The exact price will depend upon the condition of the baseball and when it was signed.
I would estimate $25.00 - $50.00
$0 to negative. It may actually lower the price of the baseball.
VERY high.... i believe that someone has gotten 1,000 dollars for it before!