I have never seen this Rosen candy box before. Every once in a while some new Rosen-made artifact surfaces to my surprise. They were surely prolific with their designs! Rosen-made items are difficult to date with accuracy. They left few clues to help collector/curators like me. The acme of Rosen paper is surely their various "Pops" boxes. Check out pages 116-118 for a nice selection in the collection.
Mark B. Ledenbach's vintage Halloween collectibles blog.