RADIO STATION SURVEYS before 1960

I seek radio station music surveys BEFORE 1960. I'm looking for the unusual, small or obscure radio stations, NOT anything from CHUM KFWB Chicago Baltimore Detroit Houston San Francisco WHBQ WWDC WBZ KFWB KCBQ KEWB. My highest offers will be via ebay - if you contasct me first I'll tell you what minimum I'll meet, if I need it. I often give more than $100 for needed ones, so finding just a few I need can be very lucrative for you. A sample picture shown here! Thank you