How much would you expect a signed Back in Black album jacket by all ACDC band members who played on the album and accompanying platinum album to go for?

The value of a signed "Back in Black" album jacket by all AC/DC band members who played on the album, along with a platinum album, could range significantly based on market demand, condition, and provenance. Typically, such a collectible could fetch anywhere from $2,000 to $10,000 or more at auction or through specialized dealers. Factors such as authentication and the desirability of the signatures will also heavily influence the final price.