“SR Dachmarke” by The logo may be obtained from Saarländischer Rundfunk.. Licensed under Fair use via Wikipedia
Saarländischer Rundfunk (SR) is a public broadcaster for the German state of Saarland. Their radio network consists of five programming streams. The radio programs are transmitted on several transmitters throughout Saarland. SR used to broadcast on medium wave on 1422 kHz until 1994. The network Deutschlandfunk took over the channel on 1 January 1995.
We heard the SR1 Europawelle network on some of their transmitters during our July 1989 trip. Below are the QSL cards they sent in response to my reports.