If you look at the top of the page, you will notice a link to a new page of initials. This is where, as you might guess, we plan to collect decorative initials. The D above is a historiated initial, meaning that it has a picture in it; in this case, the picture is of Phyllis riding Aristotle like a horse, from a well-known medieval story that was fabulously productive of art.
By Hans Burgmair. From A Treatise on Wood Engraving, 1839.