This classic stamp from San Marino features a finely detailed illustration of an ancient Greek trireme (“Triera Greca”), dating back to the 2nd century BC. The design highlights the elegance and power of early naval engineering, with visible oarsmen and billowing sails bringing the vessel to life. Rendered in a rich brown tone with red accents, the stamp reflects mid-20th century engraving artistry. It is part of a historical maritime-themed issue, celebrating ancient seafaring traditions. A desirable piece for collectors of naval history, classical antiquity, and European philately.