Fair Warning Heads Underground With Keith Haring Subway Drawing Estimated at Just Under $1 M.

On the heels of a couture sale that saw the guerrilla auctioneers at Fair Warning tackle the runway, the house is going somewhere a little more underground—literally.Its next major auction will offer a monumental Keith Haring subway drawing from 1984, one of the chalk-on-black-paper works the artist famously made on blank advertising panels throughout the New York City subway system in the early 1980s.The untitled drawing, which measures 80 by 40 inches, shows a towering skeleton whose eye