Compass Rose Sterling Silver Charm Necklace Pendant Nautical Ocean Theme Jewelry Features: Genuine sterling silver components, chain, and clasp. Sterling silver compass pendant measures just over an inch (26x20mm). Delicate rope-style chain with lobster clasp. From San Diego-based Asilomar Works. The compass rose has appeared on navigation charts and maps since the 1300's. The term rose" comes from the figure's compass points resembling the petals of its blossom. The device is used to indicate the directions of the winds. "