Photographic self portrait by Lewis Carroll, and its inclusion into an illustration by Henry Holiday to Lewis Carroll's The Hunting of the Snark
[top]: Henry Holiday: vectorized segment of an illustration (cut by Joseph Swain) to The Beaver's Lesson in Lewis Carroll's The Hunting of the Snark (1876)
[middle]: Low pass filtered
[right]: Self portrait by Charles Lutwidge Dodgson (aka Lewis Carroll, May 1875) displayed in mirror view. (Credits for the photo used in the comparison: Watts Gallery, Compton, Guildford)
It should be considered that mirroring (swapping left and right) may have occured just because the engraver (Joseph Swain) reproduced the illustration directly from Dodgson's photo. The wood block print then shows a mirror view. This applies to all mirror views cut by Swain. In other cases Holiday and/or Swain had to create intermediate drawings with mirrored images (or elements of images) in order not to have a mirror view in the print.
www.flickr.com/photos/bonnetmaker/5085322873/ (without resemblance indicators)