According to Wiki, Chéri Hérouard (1881 - 1961) was a French illustrator who was most famously known for his forty-five year work for French society magazine, La Vie Parisienne.
I found this set of Hérouard's cover-art for La Vie Parisienne on the Flicker photostream of asoftblackstar - if you're interested in vintage illustration there's a lot more on her page, some of it quite saucy.
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