c1940 Symmetalic Sterling & 14K Brooch. 2 5/8" long gold plated silver. First used in 1936, Symmetalic is the registered trademark of W.E. Richards Company of North Attleboro, Massachusetts. Symmetalic pieces were typically made of sterling silver, sometimes with gold vermeil, cultured pearls, and/or top quality rhinestones. Edwardian and Art Deco design influences are often seen. The quality of this jewelry is extremely high and it is not commonly seen. These factors are responsible for the extreme desirability of these pieces.