Yesterday I found this in a charity shop:
Contemporary photo-lithograph of David Low's 1936 caricature of the poet, essayist and historian Hilaire Belloc. Great artist, great subject. Low wasn't cruel in the way some modern cartoonists are- but he could get under his subjects's skin. He described the art of caricature as "all-in portraiture."
The original pencil drawing is in the V & A.