Watch those fingers: The photo has been “photoshopped” (by Henry Holiday or Joseph Swain?) already many years before I worked on it using GIMP. Holiday’s tinkering with the little finger and the thumb of his left hand might be a “Victorian craze“.
The image shows Henry Holiday and segments of one of Henry Holiday’s illustrations (cut by Joseph Swain) to Lewis Carroll’s The Hunting of the Snark. The Segments show the Bonnetmaker and a bonnet.
The photo is several years older than Holiday’s illustrations to The Hunting of the Snark. Perhaps it is a portrait taken by Joseph Swain or a self portrait taken by Henry Holiday quite a few years after the Snark was published.