KBBB

I'm not entirely sure where this KBBB sticker is from.  There was an AM station with those call letters licensed to Borger, Texas in the mid-1970s.  More recently there was a KBBB FM in Billings, Montana and there's currently one in Bay City, Texas but I doubt either of these are related to the one on this decal.  Anybody have any info?  Leave a comment if you do.