Via Flickr:Original Vanity Fair Print, otherwise known as a Spy Print after the most renowned artist of the genre, Leslie Ward.
This one is dated 15th March 1873 with the caption The Sailor’s Champion
The subject is Samuel Plimsoll , a renowned Shipping influence of the Victorian Era.
The man who gave his name to the Plimsoll Line.
This print was, like many of the early caricatures, unsigned.