Home » EAST GERMANY 20 Mark 1966 silver KM16 – Gottfried W. Leibniz EAST GERMANY 20 Mark 1966 silver KM16 – Gottfried W. Leibniz EAST GERMANY 20 Mark 1966 silver KM16 – Gottfried W. Leibniz Leave a Reply Cancel replyYou must be logged in to post a comment.