Beautiful Vintage 14K Yellow Gold Blue & Yellow Enamel 。Beautiful vintage OPRO Norway Sterling silver butterfly pin, crafted in genuine .925 silver with classic Norwegian enamel artistry. The wings feature vibrant color and delicate detailing, showcasing the high‑quality craftsmanship OPRO is known for. The piece is in very good vintage condition, with light, natural wear consistent with age. The enamel remains bright and the pin mechanism works securely. Marked “NORWAY STERLING” on the back. Highly collectible and sought after by lovers of Scandinavian jewelry and mid‑century enamel work.