What is the value of an autographed David Ortiz picture?

David Ortiz signed 8x10 Photo

A David Ortiz signed 8x10 Photo is worth about $100.-$150. Prices will vary based on condition, and the type of authenticity that accompanies the signature. Photo composition, how well the photo displays the signature, the type of ink used, and how it stands out in contrast to the photograph will also effect the price. Sharpie would be most preferred for a photo. Larger and more desired pictures could sell for more. Signatures authenticated by companies such as Steiner sports, or Mounted Memories that use authentication holograms sell at the higher price.