This 1930s brooch by the German maker Schreiber & Hiller reminds me of a bolt of lightning, a popular theme in Machine Age jewelry of that decade. This piece is formed by seven flat-top links that are bent to form a sort of zig-zag shape. Long (3 ¼”) and lean, this unusual brooch closes with a trombone clasp. An elegant and unusual adornment for a jacket lapel. Scroll down to see coordinating bracelets.