UB4LPO

front side QSL card, of UB4LPO to IK6BAK, June 11, 1991, CW
rear side QSL card, of UB4LPO to IK6BAK, June 11, 1991, CW
letter envelope QSL card, of UB4LPO to IK6BAK, June 11, 1991, CW