What is the value of a polaroid of Elvis Presley?

IF the Polaroid is an unpublished original of Elvis, being of good quality, the value can range from as little as a few hundred dollars to as much as several thousand dollars depending on the type of photograph it is (i.e. a candid, taken onstage, during the 1950's, etc.).

IF it is an unpublished original photograph the value will be increased, and forever protected, if it is registered with the US Copyright Office.