Materninius Faustinus built on his property one of the last known to date. He also ordered the construction of several of the monuments that decorated his temple, including the main tauroctonic relief. In two of the inscriptions found, Materninius is mentioned as Carax (Corax), i.e. the first grade of the Mithraic scale. The sanctuary, called fanum, was consecrated by a Pater by the name of Potentianus.
—The New Mithraeum 2022.
Corax Materninius Faustinus dedicated other monuments found in the same Mithraeum in Gimmeldingen.
In h(onorem) d(omus) d(ivinae) / deo / invihto (sic) / Materninius / Fau[s]tinus carx (sic) / in suo posuit / (libens) l(aetus) m(erito).
In honour of the divine house, to the invincible god, Materninius Faustinus, Raven, placed (this altar) on his own land willingly, gladly and deservedly.
The inscription was located at the base of the main Tauroctony of the Gimmeldingen Mithraeum
In h(onorem) d(omus) d(ivinae) / deo inviht[o] (sic) Midre (sic) / Maternin[i]us Faustinu(s) / carax (sic) fan[um] cum solo inviht[o] / in suo fecit c[ onsac]ratus XI k(alendis) Feb(ruariis).
Fanus (sic) consacrat(us) / per Potentianum / patrem co(n)s(ulibus) / Paulino et Iuliano /l(ibens) l(aetus) m(erito).
In honour of the divine house, to the invincible god Mithras, Materninius Faustinus, Crow, consecrated a shrine with (a statue of) the invincible Sol, on his property (in suo), on the tenth day before the calendars of February. Sanctuary (fanum) consecrated by Potentianus, Father, the consuls being (Sextus Anicius Faustus) Paulinus and (Ionis) Iulianus, willingly, joyfully and justly.