morse and voice mixed in this recording (rb, 1972)
QSL-card from 1973 (rb)
here is an interesting QSL-letter (Ary Boender, 1983)
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Callsigns:
WOO
Frequencies Voice:
2182
2450
2558
4384
4387
4402
4420
8740
8749
8761
8762.3
8794
13083
13104
13107
13158
13164
13172
17245.3
17254
17299
17317
17325.9
17332
22596
22696
22708
22723
22801
Frequencies FAX Picture Transmissions:
5157
12122
Frequencies Radioteletype:
4212.5
6328
8051
8433
12632
Systems used:
120 rpm
SITOR