WGMD

92.7 FM WGMD is a News/Talk station licensed to Rehoboth Beach, Delaware.

WBZY

WBZY "105.3 FM El Patron" was a Regional Mexican station licensed to Bowdon, Georgia near Atlanta. 

KYAL

1600 AM KYAL played Country music in McKinney, Texas from 1965 until 1976.  The call letters did indeed stand for the southern expression "y'all".

KNOR

1400 AM KNOR went on the air in (K) NORman, Oklahoma in 1949.  A 1994 article from The Oklahoman newspaper says that KNOR's owner was willing to donate the station to the University of Oklahoma.  I can find no evidence that this ever happened.  This OUDAILY article from 1996 says that the station started a show called "The Fringe" playing Alternative Rock on Friday and Saturday nights.  While the show was run by OU students, they were not sponsored by the university.
1400 AM currently airs a Sports format with the call letters KREF.
Obviously, the bottom sticker is suffering from some bad ink issues.

KLTY

94.9 FM KLTY airs a Contemporary Christian format in Arlington/Dallas, Texas.  They were formerly located at 94.1 FM and licensed to Fort Worth, TX.

Covers of two KLTY Now! magazines from 2012 and 2013.

KREX

1100 AM KREX broadcast to Grand Junction, Colorado from 1956 until 1984.  The call letters referred to R.G. "Rex" Howell who had owned the station since 1926.

KLEE / KOTM

1480 AM KLEE went on the air in 1954 in Ottumwa, Iowa.  They currently air an Oldies format and are also heard on translator K299BA at 107.7 FM.  Sister station "Tom FM 97.7" KOTM plays Top-40 music.

KERI

1410 AM KERI is a Religious Teaching station in Bakersfield, California.  These two stickers date to when KERI was located at 1180 AM and licensed to both Wasco and Greenacres, California.

KAUM

KAUM was an Album Rock station in Houston, Texas for most of its history with those call letters.  The 96.5 FM frequency became KAUM in 1971 and by the end of the decade they had drifted towards becoming a Top-40 station.  In 1980 they changed calls to KSRR.

KSSU

KSSU is a student-run, free form station broadcasting from California State University, Sacramento.  They operate legally but without an FCC license because they only broadcast with 3 watts of power.  They have been streaming online since 2005.

CFVR

"Mix 103.7" CFVR is a Hot Adult Contemporary station in Fort McMurray, Alberta.

K238AF

"Latino 95.5" K238AF is a Spanish CHR station licensed to Santa Rosa, California.  They relay the HD2 sub-channel signal of KSXY.

Prior to their current format they played Soft Oldies as "Vintage 95.5".

WAXQ

"Q104.3" WAXQ plays Classic Rock in New York, New York.  They've carried a Rock format since switching from Classical music in 1993.  Two slightly different WAXQ stickers can be seen here. And here.

KADI

KADI was an Album Oriented Rock station in St. Louis, Missouri throughout the 1970s and much of the 1980s.  They were the main competitor to longtime Rock station KSHE.  KADI's call letters reflected the last name of William Cady, the owner at the time the station went on the air in 1959.

WUMB

91.9 FM WUMB is owned by the (W) University of Massachusetts Boston and airs a mix of Folk, Americana, Roots and Blues music.  Weekend shows focus on Traditional Folk, Blues, Celtic and World music as well as syndicated programs.  WUMB broadcasts with only 160 watts and relies on a series of eight repeater stations to widen its broadcast area beyond just the city of Boston.  They went on the air in September 1982.

KUSW

Terrestrial, commercial Rock stations are a dime a dozen.  But a Rock station broadcasting on shortwave radio was something unique indeed.  From 1987 until 1990, Salt Lake City, Utah's "SuperPower" KUSW aired what would later be described as a rock-leaning Adult Album Alternative format to listeners around the world.  Besides music, KUSW also aired news and public affairs programming as well as worldwide weather conditions.  Advertisers were companies that had international presence such as Coca-Cola, McDonald's, Pizza Hut and Levis.  Sadly, KUSW was sold to the Trinity Broadcasting Network who switched to Religious programming.  To celebrate the change in ownership, TBN literally blew up the KUSW record library because, you know....devil music.

SWR Südwestrundfunk

SWR (Südwestrundfunk, "Southwest Broadcasting") is a public broadcasting company covering the southwest part of Germany.  It broadcasts on six radio channels as well as multiple television channels.  SWR was established in 1998 after the dissolution of predecessor organizations SDR and SWF.

SWR1 plays Pop/Rock from the 1960s through the 1980s as well as some current hits.  SWR1 operates two regional versions, one for Baden-Wurttemberg and the other for Rheinland-Pfalz.

SWR2 is Talk programming along with radio plays, spoken word features as well as Jazz and Classical music.

SWR3 plays Pop and Contemporary music targeting 14 to 39 year olds.

SWR4 plays German hits and oldies with the same two regional versions as SWR1 as well sub-local versions within each.

SWR Aktuell broadcasts News and current affairs programming.

DASDING is ad-free, youth-oriented radio hosted mostly by young people.