Klippe - A klippe is a square coin minted on more easily produced square flans. These coins were usually issued under unfavourable conditions, such as a city under siege. Such emergency coins were issued in Vienna in 1529, while the city was besieged by the troops of the Ottoman Empire. The below is a piece I had purchased over a year ago, which is quite rare. Austria - Salzburg. Storm Half Taler Klippe, 1593. Probszt-810. Wolf Dietrich von Raitenau. Seated saint with arms before. Reverse: Four winds blowing at tower. Graded NGC VF-35. Some say this tower depicted is the Tower of Babel. I won a 1644 1/9 Taler Klippe on ebay yesterday (PCGS AU-50) which I will post once received.