Anonymus 419 was the owner of a seal dateable to the seventh century: Speck, Bleisiegel 85. Obv.: standing figure, praying, perhaps between two crosses, and perhaps the letter ν. Rev.: cruciform monogram containing the letters μ, β, κ, τ, ο, υ and possibly ω. The interpretation is not clear. If the monogram represents just a name, it may have been Krambonites.

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