10 Euro Archimedes' screw

Part of Greece's long-running "Greek Technology" series, this issue commemorates the water-lifting device attributed to Archimedes following his time in Egypt, likely in the third century BC. Whether Archimedes invented the screw outright or systematized an existing Egyptian mechanism remains genuinely disputed among historians of ancient technology.

The series has drawn consistent collector interest in part because it forces the Greek mint to engage seriously with ancient engineering rather than mythology — a narrower brief that tends to produce more technically interesting designs.