UL7GDN

front side QSL card, of UL7GDN to IK6BAK, February 12, 1983, CW
rear side QSL card, of UL7GDN to IK6BAK, February 12, 1983, CW
letter envelope QSL card, of UL7GDN to IK6BAK, February 12, 1983, CW