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The center of the page features the official circular seal of the Vatican Apostolic Library original: "Biblioteca Apostolica Vaticana", depicting the papal tiara Triregnum The triple crown symbolizing the three-fold authority of the Pope. above two crossed keys. This is overlaid by a larger circular digital watermark that reads "VATICAN APOSTOLIC LIBRARY" and "ALL RIGHTS RESERVED" in English and Italian.

VATICAN GREEK 283 Abbreviated from the Latin "Vaticanus Graecus 283," the official shelfmark for this manuscript in the library's collection.