IK6DUN

front side QSL card, of IK6DUN to IK6JOV, September 12, 1990, SSB
rear side QSL card, of IK6DUN to IK6JOV, September 12, 1990, SSB
letter envelope QSL card, of IK6DUN to IK6JOV, September 12, 1990, SSB