no recording available
very interesting and detailed QSL letter (Frank Schüttig,
1974)
Verification letter from the collection of Michael Oexner (1980)
interesting misprint in this QSL: they verify 'WSC'
instead of 'WSL'... (Frank Schüttig, 1983)
------------------------------------------------------------
Callsigns:
WSL
Frequencies Morse Telegraphy:
418
476
500
4343
6418
8514
8658
12997.5
13024.9
13078.5
16997.6
17021.6
22485