GEORGE JENSEN STERLING HENNING KOPPEL SPLASH BROOCH #321: A fabulous vintage George Jensen sterling pin designed by master craftsman Henning Koppel*. The sculptural pin has graceful, changing lines with smooth transitions. The pin has an amoebic quality, it changes when viewed from different angles and looks great from everyone! Marked with the Georg Jensen hallmark, sterling Denmark, #321. Measures 1 7/8'' by 1.3/8'' and weighs 16.6 grams.