[Gino]

The manual and turntable look very similar to an old Grundig unit my mother-in-law used to own. i listed it on ebay and got no bidders, but someone did want the tubes and speakers. Check ebay to see if any others have sold. I think it those frequencies you mentioned might be short wave frequencies. Don't know much else. I have watched "Antiques Road Show" enough times to see some inexperienced furniture refinisher polishing and refinishing an old piece just enough to reduce it's value to a fraction of it's intact worth. Consult an antique expert before you proceed with any refinishing. A local auction house may be a good source too. Hope this helps.
ps, is that a 7070 in the background or a 6060? Gino