While I don't have extensive information reguarding the model sheets, I can only assume that the bulk of the model sheets were either destroyed or are being held in archives. They're probably very valuable too. In 1996, when Bantom Books published "The Rocky and Bullwinkle Book," a large coffee table book, it included two beautiful model sheets. The best thing about any model sheet is the little comments concerning character design. So here are the two public model sheets. The first features just Bullwinkle, and the second includes Rocky, Bullwinkle, Boris, and Natasha.