DL5DUB

front side QSL card, of DL5DUB to IK6BAK, July 27, 2011, CW
rear side QSL card, of DL5DUB to IK6BAK, July 27, 2011, CW
letter envelope QSL card, of DL5DUB to IK6BAK, July 27, 2011, CW