I like the Marvel Value Stamps!  
     I read in one of the old letters columns, that if you send in stamps #1-100, that Marvel would send you a "Marvel Value Stamp - Stamp Book".
     I've looked, but I have never seen one.
     With the "Comics Code" gone, and horror in full effect, Marvel decided to turn Tigra in a Were-Wolf,   err ... I mean a "Were-Woman"!
     This small piece of art was used to promote her new look.