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Marble tauroctony relief fragment from Steklen near Svichtov, ancient Novae in Moesia Inferior, preserving the right part of a bull-slaying scene with a serpent and the grotto border.
The Tauroctony of Nicopolis ad Istrum is unique as it is the only Mithraic stele befitting a Greek donor.
This limestone relief of Mithras killing the bull bears an inscription by a certain Flavius Horimos, consecrated in a ’secret forest’ in Moesia.
Coin of Istrus, Moesia Inferior, showing Caracalla on one side and a god on horseback (Mithras ?) on the other.
In the altar that Titus Tettius Plotus dedicated to the invincible God, he called himself pater sacrorum.
An unusual feature of this very ancient relief is that Cautopates carries a cockerel upside down, while Cautes carries it right-side up.