ANTIKE Byzanz Oikonomides, Nicolas. Studies in byzantine Sigillography - Dumbarton Oaks research Library and Collection, 254 Seiten, Washington 1993; A Collection of dated byzantine lead Seals - Dumbarton Oaks research Library and Collection, 175 Seiten, Washington 1986; Byzantine lead Seals - Dumbarton Oaks Center for Byzantine Studies, 27 Seiten, Washington 1985. (3) Gebraucht - neuwertig, I-III