The hairpin is a vintage Judith Jack sterling silver marcasite hairclip. Material: The hairclip is crafted from 925 sterling silver. Design: It often features an Art Deco-inspired design with intricate details. Stones: The design incorporates numerous shimmery marcasite stones. Some variations of the design also include faux pearls accents. Hallmarks: The back of the hairclip is signed with the "JJ" maker's mark within a diamond shape, and marked "Sterling". Condition: As a vintage item, condition can vary, but generally, they are well-crafted and durable pieces.