Greek Bible Art: Apocalypse

This depiction of the Apocalypse is by Jacobello Alberegno (source). The verse is Rev. 5:1.

εἶδον βιβλίον κατεσφραγισμένον σφραγῖσιν ἑπτά.
Vidi librum signatum sigillis septem.
I saw a book sealed with seven seals.