A striking marine-life definitive featuring the polished Tiger Cowrie shell (Cyraea tigris), one of the most recognizable Indo-Pacific seashells. Printed in rich blue tones with realistic shading, the design highlights Oman’s coastal biodiversity and maritime heritage. The detailed shell portrait, paired with bilingual Arabic–English inscriptions and the Courvoisier imprint, gives the stamp strong visual and production appeal. The 50 Baisa denomination makes it a key mid-value from the marine fauna set. Ideal for topical collectors of shells, ocean life, and Gulf region philately. A classic vintage issue that displays beautifully in thematic or Middle East collections.