This is a round promotional sticker for KTNT-AM, which was the radio station of the Tacoma News Tribune (TNT).
The sticker says “Music for you!” with two music notes for accents, and a logo of a radio with two walking legs. Written on the back of the sticker covering is KTNT sticker 1978.
KTNT-AM (1400 kHz) was sold in 1983 and is now KITZ-AM in Bremerton.
KTNT-FM (97.3 MHz) opened in 1948 and has been KIRO-FM since 2009.