For any sports or comic book collectors, this is a dream come true; a Superman comic book from the 1970s is brought into the Pawn Stars shop and is appraised by an expert. Although this isn’t just any Superman comic; this particular issue features Superman fighting Muhammad Ali! While the comic book isn’t worth as much as one would think (although it was sold for $2.50 in the 70s and was appraised at $150…not a bad investment!), this is still a cool piece of history! Take a look at the following clip, and notice all of the celebrity cameos in the comic book…pretty cool!