Geiger Edelmetalle, a German manufacturing company that has been producing precious metal products since 1218, produces the 100 gram Geiger Security Line silver bars. The obverse, finished with a pearl matte luster, features a pressed design of the German castle, Schloss Guldengossa, and states 'Feinsilber 999, 100g.' The reverse is textured with repeating LEV rhombus. When placed under a UV or black light, the LEV rhombus and the year of mintage glows blue. Each bar contains 3.215 oz. of .999 silver. Bars are sealed with a serial numbered label and created with ribbed edges to prevent manipulation of the bars.