On the lid of the urn the deceased (with head and right arm missing) is portrayed semi-reclining at banquet, no longer with nude torso but wearing a tunic and mantle. On the basis of the inscription (Arnth Fethiu Larisal) the urn has been attributed to the powerful Volterra family of the Ceicna Fetiu. On the front of the chest the scene of the death of Myrtilus is carved in very high relief (the figures are sculpted almost in full relief, like personages moving on a stage framed by two fluted columns). The charioteer, responsible for the death of Enomaos, has taken refuge in a temple, represented by two columns surmounted by urns. He is transfixed with a sword by Pelopes while he seeks refuge beside an altar. Meanwhile Hippodamia tries to tear from his hand the sawed-through wheel of the chariot in which her father has lost his life, while on the right a priest flees horrified by the sacrilege.

A vase is depicted on the short sides.

This is the eponymous urn of the artisan who produced it, Greek by training if not by origin, known as the Master of Myrtilus, head of the workshop that introduced to Volterra the baroque — style of the Hellenistic kingdoms of Asia Minor, from which derive the colouristic effects, the rich chiaroscuro and the dramatic movements unfolding along a few chiastic lines.