Phonoland

I have a FIRESTONE s-7404-7 radio. It was used in my grandmothers bar years ago. All I know about it is that it still works. Any information that I can get would be great. How to clean it up,what year it is, and what value it has.
Thank you, Dave

All I know is the when they came out, they were cheap. Now they are rare. I only have one, and have only seen one in my 20yrs.

I meant Firestone products... come to think of it, I've seen a few console models here ane there, but never a stand alone radio.... Is that what you have?