( Video Link ) Henri Maillardet (b. 1745) was a master maker of automata. This caterpillar, which is less than three inches long and is covered with diamonds, pearls, emeralds and enamel, remains fully functional. Watch it inch across the surface of the glass just like a real caterpillar. It’s an amazing piece of miniature mechanical craftsmanship. Link -via Richard Kadrey

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Caterpillar Automaton, c. 1820