WGRQ / WGR / WGRF

"97 Rock" has been on the air in Buffalo, New York almost continuously since 1975.  They've had three sets of call letters that I know of--WGRQ (which is what they were when I lived there in the early 1980s), WGR-FM and currently WGRF.  To be honest, I'm not 100% sure that the top sticker is from Buffalo or is from a different "97 Rock."  Another WGRQ sticker with the classic black and white logo can be seen here.