A 1961 New York Yankees Team signed Bat with the Key signatures: Kubek, Berra, Mantle, Ford, Howard, Maris, and Tresh is worth about $1,500.-$2,500. Price is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the signatures. Prices may also vary based on the amount of signatures, and key signatures acquired. The more complete the bat with key signatures the more valuable. Signatures that have not been properly authenticated could sell at half the market value or less.