Anonymus 518 was a megas meizoteros; owner of a seal dateable to the ninth century; his name is lost: Zacos and Veglery 2602. Obv.: cruciform monogram of Θεοτόκε βοήθει, with .. - .. - δου - .. in the corners. Rev.: .... - ..μεγ - ... μειζ - ...ρω. The title reads: ... μεγάλῳ μειζοτέρῳ.

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