Anonymus 508 was a basilikos koubikoularios; owner of a seal dateable to the ninth century; his name is mostly lost, but ended with the letters λος: Zacos and Veglery 2584. Obv.: cruciform monogram of Θεοτόκε βοήθει, with .ω - .. - δου - λω in the corners. Rev.: .... - λω βασιλι - κω κουβικου - λαριω. The name and title read: ...λῳ βασιλικῷ κουβικουλαρίῳ.

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