THEME

The Greece, 2025, 10 Euro Silver Proof Coin “Ptolemy’s Astrolabe” celebrates one of the most important scientific instruments of the ancient world and honors the legacy of the Greek astronomer Claudius Ptolemy . The astrolabe was an essential tool used for centuries in astronomy and navigation to determine the position of celestial bodies and measure time. Inspired by the scientific achievements of the Hellenistic period, this coin highlights the remarkable contribution of Greek scholars to astronomy and the advancement of scientific knowledge.