WRTA

Altoona, Pennsylvania's 1240 AM WRTA went on the air in June 1947.  They were originally owned by Roy Thompson, the RT in the station's call letters.  WRTA currently carries a News/Talk/Sports format.
 

WZJZ

104.3 FM WZJZ was a Smooth Jazz station in Columbus, Ohio during the second half of the 1990s. 
 

WOKN

99.5 WOKN plays Country music in Elmira/Corning, New York.  They are also heard on translator W237AC at 102.5 FM.
 

WGOV

950 AM WGOV was on the air in Valdosta, Georgia from 1939 until 2013.  The call letters refer to the station's founder, Eurith D Rivers, who was Georgia's (W) GOVernor from 1937 to 1941.  WGOV was one of the first stations in the country to play R&B music with the airing of the Jack The Bellboy program beginning in 1948.
 

KPLX

99.5 FM KPLX has been a Country station in the Dallas/Ft. Worth/Arlington (K) metroPLeX since 1980. 

KYNO

KYNO was a Top-40 station in Fresno, California first branded as simply "96 FM" and later becoming "Hot 96." 
 

KSHA

An early 80s sticker from Adult Contemporary-formatted 104.3 FM KSHA in Redding, California.  Their call letters are a reference to Mount Shasta and the nearby Shasta-Trinity National Forest.  They are currently branded as "K-Shasta 104.3"
 

KGW

620 AM KGW broadcast from Portland, Oregon from 1922 until 1993.  They were a popular Top-40 station in the 1960s and 70s before shifting to Adult Contemporary and Talk by the late 1980s.  A series of call letter changes began in 1993 (KINK, KOTK, KEWS, KDBZ, KTLK) before becoming KPOJ in 2003.  They currently carry a Sports format.

KCLV AM & FM / KTQM / KWKA

1240 AM KCLV went on the air in (K) CLoVis, New Mexico in February 1952.  Their FM counterpart began broadcasting in January 1970 as KMTY and took the KCLV call letters in 1981.  Both are currently co-owned with Adult Contemporary 99.9 FM KTQM and Sports formatted 680 AM KWKA.
 

KCLU

Non-commercial 88.3 FM KCLU is owned by (K) California Lutheran University in Thousand Oaks, CA.  They broadcast a full slate of NPR and other public radio programming along with BBC World Service news.  These stickers date to when they aired a mix of Jazz and News/Talk.  KCLU went on the air in October 1994.
 

CJBP

CJBP "CJ97.1" is a Country station licensed to Neepawa, Manitoba.  They began broadcasting in April 2010.
 

WKEN

1600 AM WKEN is a defunct station that broadcast from Dover, Delaware between 1957 and 1997.

WBZU

"106.5 The Buzz" WBZU was an Alternative Rock station in Richmond, Virginia.

 

WKQB

"B107" WKQB was a Classic Rock station in Fayetteville. North Carolina circa the late 1990s.
 

KXMX

"Max 102.9" KXMX was a Country station in Cedar Rapids, Iowa from 1995 until 1998.  The frequency is currently home to Top-40 outlet KZIA.

FM Cocolo

FM Cocolo broadcasts at 76.5 FM in Osaka, Japan.  Programs are mostly heard in English and Japanese but a dozen other languages are given timeslots as well.  Cocolo is a Japanese word for "heart" and also stands for Cooperation, Communication, Love.  FM Cocolo went on the air in October 1995.
 

Radio Bruno

Based in Carpi, Radio Bruno broadcasts on dozens of frequencies throughout northern and central Italy.  They've been on the air since May 1976.
 

WWSP

89.9 FM WWSP is a 30,000-watt student and community volunteer-run station operating from the University of Wisconsin-Stevens Point.  They carry an Alternative Rock format as well as broadcasting a rather impressive weekend-long trivia contest held every year since the early 1970s.

WRCM

92.1 FM WRCM was on the air in Jacksonville, North Carolina from the mid-1960s until the late 1980s most or all of those years as a Country station.
 

The Point Network

The Point is a network of Vermont stations carrying an Adult Album Alternative format with the flagship being 104.7 FM WNCS in Montpelier.  They are also heard on four other stations and translators covering most of central and northern Vermont as well as parts of New York, New Hampshire and Quebec.  A sticker from a disused Point frequency can be seen here.