Roman relief (3rd century AD) depicting a sequence of the Labours of Hercules, representing from left to right the Nemean lion, the Lernaean Hydra, the Erymanthian Boar, the Ceryneian Hind, the Stymphalian birds, the Girdle of Hippolyta, the Augean stables, the Cretan Bull and the Mares of Diomedes
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