3Z1K

front side QSL card, of 3Z1K to IK6JOV, June 7, 2016, CW
rear side QSL card, of 3Z1K to IK6JOV, June 7, 2016, CW
letter envelope QSL card, of 3Z1K to IK6JOV, June 7, 2016, CW