One common example of skeuomorphic design mentioned by designers is the simulation of paper texture on the screen (Apple being the most common user of this aesthetic). What you may not realize is that the simulation can go even farther in our visual past. Above is just one example.
This is an etching printed on paper, but the etching simulates curled paper on the top left corner. Simulating paper on paper itself? You might as well simulate pixels on a computer screen.
The etching is a view of the Süleymaniye Mosque built in the Ottoman Empire in the sixteenth century.