European helmets, 1450-1650 : treasures from the reserve Collection / Stuart W. Pyhrr Firearms from the collections of the Prince of Liechtenstein / by Stuart W. Pyhrr ; photogr. by Walter Wachter armored horse in Europe, 1480-1620 / Stuart W. Pyhrr, Donald J. LaRocca, and Dirk H. Breiding
