Austria (Duchy). Vienna, Albrecht II (1330-1358), uniface Silver Pfennig, 0.5g, eagle's head, facing left, above tower. Luschin-134, Koch-255, VG
References;
Alfred Szego, The Coinage of Medieval Austria 1156-1521, a basic outline , privately published, 1970.
Bernard Koch, Der Wiener Pfennig. Ein Kapitel aus der Periode der regionalen Pfennigm ünze , Vienna 1983.