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A faint library stamp is present to the left of the central printer's emblem.
THE BOOK OF THE ASCENT OF THE MIND ON THE FORM OF THE HEAVEN AND OF THE EARTH. — COURSE IN ASTRONOMY, — WRITTEN IN 1279, BY GREGORY ABULFARAJ, CALLED BAR HEBRÆUS, PUBLISHED FOR THE FIRST TIME, ACCORDING TO THE MANUSCRIPTS OF PARIS, OXFORD AND CAMBRIDGE, BY F. NAU, DOCTOR OF MATHEMATICAL SCIENCES, LICENTIATE OF PHYSICAL SCIENCES, GRADUATE OF THE SCHOOL OF ADVANCED STUDIES.
A printer's mark or emblem features a rearing horse facing left, positioned atop a shield containing the initials "F.V." The shield is surrounded by ornamental scrollwork and foliage, with a banner draped at the bottom.