Antique vintage early 20th-century brooch from Gablonz, Bohemia, northern Czechoslovakia. An Art Deco piece from the 1920s or 1930s. This brooch has a cast brass decorative border layer which adheres to a white metal backing. A beautiful lapis blue satin glass stone is bezel set in the center. 1.9 x 1.25 inches and .25 inches in thickness. This is a stunning and beautiful example of classic old Czech jewelry in excellent condition.