UO5OBT

front side QSL card, of UO5OBT to IK6BAK, January 28, 1990, CW
rear side QSL card, of UO5OBT to IK6BAK, January 28, 1990, CW
letter envelope QSL card, of UO5OBT to IK6BAK, January 28, 1990, CW