What is the value of a 1960 Pittsburgh Pirates team autographed baseball?

A 1960 Pittsburgh Pirates Team Signed Baseball with the key signatures: Clemente, Mazeroski, Law, Stuart, and Vernon is worth about $1,200.-$2,000. 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 (Oct. 2008) a 1960 Pittsburgh Pirates Team Signed Baseball sold for $2,390.00 Baseballs that feature a Roberto Clemente signature have been on the rise in recent years. 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.