this recording from the files
of Patrick Robic plays Absam *AB-313
and Klagenfurt KI-313 (2015)
nice QSL card from the collection
of Patrick Robic (1999)
here is an interesting link
to german edition of Wikipedia, listing some NDB details, and
showing a picture of this one
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Callsigns:
KI
Frequencies Morse Telegraphy:
313