On the right side you see an illustration (vectorized, the original is better) by Mahendra Singh (Montréal) from his Dream Book of Mr. Pyridine. Compare it to the 16th century etching The Image Breakers (1566-1568, mirror view, left side) by Marcus Gheeraerts the Elder.
Source of Mahendra’s illustration: justtheplaceforasnark (blog, 2009-12-03)
- You won’t find Mahendra Singh’s Dream Book yet, but The Hunting of the Snark is available as as a graphic novel:
2017-10-18, update: 2021-03-19