If you're in Athens, the Herakleidon museum has not only an exhibit about this, but about all sorts of other advanced Greek technology: coin-operated vending machines, drink-serving robots, water-powered telegraphs, etc. While this specific device may (or may not) have been a one-off, it's undeniable that ancient Greece was basically the real-life version of a Steampunk-based society. (With the caveat that ancient Persia probably had similar technology at one point also, but most of that has since been destroyed by the British and others throughout history.)