Leiden, E.J. Brill 1953 viii + 179pp., 25cm., softcover, pages still uncut, good condition, contains 10 contributions most of which deal with Nikolaus von Cues - Kues], R101722
Leiden, E.J. Brill 1959 xii + 155pp., 25cm., softcover, in the series "Studien und Texte zur Geistesgeschichte des Mittelalters" volume 5, very good condition, G101960