Anonymus 458 was a patrikios and basilikos protospatharios; owner of a seal dateable to the second half of the eighth century; his name is missing but ended in the dative with the letter ι: Zacos and Veglery 2605. Obv.: cruciform monogram of Θεοτόκε βοήθει, with .ω - δ.. - λω - σου in the corners. Rev.: .... - ..ι πατρι - .ιω και βα - .ιλικω πρ - ωτοσπα - θαριω. The name and titles read: ...ι πατρικίῳ καὶ βασιλικῷ πρωτοσπαθαρίῳ.

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