Automata clocks are those with moving figures of persons or animals which function while the clock is going or when it strikes. The earliest-known clock to carry automata is the original Strasbourg clock of 1352-1354, of which only the crowing cock now remains. The distinction between automata and jacks is the jacks are always employed in striking bells, while automata performs a variety of different actions. Automata, which were often an ingenious form of advertising, are usually associated with large clocks on buildings.