Does anyone know who the manufacture of this case may be? There are no maker marks that I can see, type of material, or serial number.

Both sides snap on and off. The greenish color side shows the movement. The watch that came with it is a Columbus North Star. Being a "Salesman" style case did Columbus produce this?

Thanks in advance

Other Side Of Case

factoid ˈfakˌtoid
noun
NORTH AMERICAN
an assumption or speculation that is reported and repeated so often that it becomes accepted as fact.

I have seen enough references to beaded display cases and Rockford that to me it has become a factoid.

I have seen photos of a couple with Rockford tags as well as a plain one with a Rockford tag, beyond that I cannot offer anything more definitive.

Thank you Lorne!