Byzantine lead seals

von Zacos, George
Basel : [distributed by J. J. Augustin, Glückstadt, West.-Ger.], 1972.
Umfang/Format: 3 volume in volume 4 : illustrations ; 30 cm. (v. 1, [part 4]: 35 cm.).

Patriarchal lead seals of the years 552-1450

von Zacos, George
Istanbul : Pardy & Son, 1986.
Umfang/Format: 14 pages : illustrations ; 21 cm.