This plaque was found in Mithraeum I at Stockstadt broken into pieces inserted between the blocks of the socle of the cult relief, in the manner of a votive deposit.
Pons Aelius, or Newcastle Roman Fort, was an auxiliary castra and small Roman settlement on Hadrian's Wall in the Roman province of Britannia Inferior, situated on the north bank of the River Tyne close to the centre of present-day Newcastle upon Tyn