Best Vintage German Tube Radio?

[harleyrider]

I went to my aunts house to look at her Grundig this is what i found and it plays . Sound is good but push buttons need cleaned (static).. Has a nice warm rich sound . Looking through the back it has what looks like 6x9s on each side. I cant find any imfo on this and she seems to think its over 70 years old ? All tubes did light up and both channels work. If i can get the tuning selector (dial) to work she would be happy . I had to go inside and manualy turn the selector because the string just slpis. I think its just tough to turn do to not being used for so many years . Any help wouold be appreciated Thanks Chris