Replica of a Heron's Odometer exhibited alongside the Antikythera Mechanism, showing how other tools of the time utilized gears.

This type of odometer was likely invented around the 3rd century BCE, and was widely used during the late-Hellenistic Period. Vitruvius described the device around 27–23 BCE and it is believed he was describing the device invented by Archimedes of Syracuse (c. 287 BC – c. 212 BC) or .

Collection of the Society of Ancient greek Technology. Construction D. Kriaris.
From the 2013 "Το Ναυάγιο των Αντικυθήρων. Το Πλοίο, οι Θησαυροί, ο Μηχανισμός" (The Antikythera Shipwreck. The Ship, The Treasures, The Mechanism) at the National Archaeological Museum in Athens, Greece.

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Athens Bronze Hellenistic National Archaeological Museum Original Photo Tools and Resources