Anyone happen to have one laying around? https://en.wikipedia.org/wiki/Antikythera_mechanism AFAIK, this is the only example found. Was it unique, or did other copies vanish through war & the collapse of civilizations, without a trace? http://www.dailymail.co.uk/sciencet...0-new-treasures-board-game-pieces-THRONE.html "They also found fragments of the world's first computer called the Antikythera Mechanism - a geared mechanical device that encoded the movements of the planets and stars, and predicted eclipses. The highly complex mechanism, consisting of up to 40 bronze cogs and gears, was used by the ancient Greeks to track the cycles of the solar system. It was so advanced, it took another 1,500 years for an astrological clock of similar sophistication to be made in Europe."