Them's speakers.
I'm totally guessing here, but I'll go with Utah.
Cabs,grills look a lot like some Magnavoxs I have...
I've seen plenty of similar VINTAGE speakers without clear IDs, and just shrug them off as relics from the days when a lot of audio hobbyists were building their own tuners and amplifiers... and speakers. Check out old issues of magazines like Popular Mechanic, and you'll find plans for things like these. Sometimes they sound quite good. Other times they don't. Let your ears decide.