Monumental chalk drawing by Keith Haring executed in the NYC subway circa 1984 on a full-size blanked out advertising panel on black paper. Features Haring's iconic motifs of winged angel men, a barking dog, and a falling man surrounding a resonating 'Serpent Man'. The paper has been laid onto canvas and archivally framed to museum standard. This work achieved possibly a record price for a Haring subway drawing when sold at Christie's in London in 2007, and is rare to find in this full size and format, intact and untorn.