The building contains a clock which re-enacts daily, the historic "meistertrunk". According to legend, the meistertrunk commemorates the 1631 event when the walled town was under siege by the Imperial forces of Count Tilly. On a lark, Count Tilly told the city that he would spare them if anyone could drink a tankard containing a gallon of wine in one draught. Mayor Nusch took the challenge. He was successful and the town was saved,

