Philoponus: On Aristotle's Prior Analytics

A large, light gray watermark of a classical Greek or Roman temple with four columns (the logo of the Internet Archive) is centered on the page. Overlaid on this image is modern sans-serif text.

The faint text visible in reverse is the title page of the work, which appears to be "COMMENTARIA IN ARISTOTELEM GRAECA" (Greek Commentaries on Aristotle).