This large, three-dimensional star flower pin is gold over sterling (vermeil) with brilliant blue guilloche enamel decorating the five petals. Some petals curve outward, some inward, giving the piece a natural look. There is an applied stem, to which the clasp is attached. There is a safety catch. The pin has a touchmark in the shape of a crown, but I cannot identify the maker. This pin is 2 7/8" X 2 1/2" X 1/2" thick. It is in excellent original condition and is probably around 40 years old.