DL3KDH

front side QSL card, of DL3KDH to IK6BAK, April 24, 1993, CW
rear side QSL card, of DL3KDH to IK6BAK, April 24, 1993, CW
letter envelope QSL card, of DL3KDH to IK6BAK, April 24, 1993, CW