Sargent by Herford

Here's Sargent doing the Duchess X
In pink velours and pea-green checks.
"It helps," says he, "to lift your Grace
A bit above the commonplace."

--Oliver Herford, from Confessions of a Caricaturist
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Download Herford's book of caricatures at Project Gutenberg, link.
Feature on Oliver Herford on 100 Years of Illustration, link.