Drawing of a female by Warren B. Davis, 1865-1928. He studied at the Art Student's League and published in Vanity Fair and Life magazines. Wikipedia. The drawing above is for sale on Ebay.
Artprice listing for a nude by Warren B. Davis.
More images at Figureworks.
Nine Nudes by Warren B. Davis at One Objectivists Art Object of the Day
Another image at Liveauctioneers.