CIMRM 825 - Inscription in tabula ansata. Walbrook Mithraeum, London, Britain
From: Ralph Merrifield, "London: City of the Romans", p.208: "It is either to this period or to the year of the short-lived alliance between Constantine and Maximian (May 307-May 308) that a dedicatory inscription to the god Mithras found in the London Mithraeum must belong. Only the right-hand end of the marble tablet has survived, with the first line ending GGGG, apparently preceded by a V. The letters AUGGGG were the standard abbreviation for the titles of four Augusti, and this was evidently a dedication on behalf of the reigning emperors recognised by Constantine, who exercised political control over Britain. In 307-8, these would have been Galerius, Maximian, Maxentius and Constantine himself. In 309-11, they would have been Galerius, Licinius, Maximinus and Constantine. The former date has been preferred by R. P. Wright, however, because his reconstruction of the missing left-hand portion would allow space for the title of a Caesar also, who in 307-8 would have been Maximinus, while in 309-11 the title was not used."