Any info on cabinet style radio that I've had since 50's would be helpful. It has 'Opns' and 'Made in western Germany' on front of cabinet Freq. are

pecial,350-150,sb,1600-520,sw,16m-49m,fm,88-108.Also at bottom has push buttons: off,phono,tape,special,noise,sb,sw,fm.Any info would be helpful. Where were they sold ? In US or just in Germany? What is special band for&what was cost new and now? Any info appreciated.Are 'kc' same as freq. and Mz's today? Thanks,Gary