Wish I had better pix of real Master boxes to compare details such as texture of the box, detail of the print, etc. And I wish I knew all the dimensions involved. That would be good too for future reference.
Here is one box. Obviously different from the one in the auction. Different depiction of marbles on front, different layout of print, different location of colors, different MMM logo.
Another box. Still different.
American Machine-Made Marbles shows a couple of other Sunbeam boxes. Still different from auction pic of course.
Grist's Big Book has yet another longer box. Still no match in the graphics. Of course.
Was there actually a variation of the sunbeam design just like the one in the auction?