1972 work poised to become priciest artwork by a living artist sold at auction
                                
                                
                                    (Newser) -
                                    In May, British painter David Hockney more than doubled his previous auction record with the $28.5 million sale of 1990's "Pacific Coast Highway and Santa Monica," per the  BBC . Now, one of his most recognizable paintings could fetch nearly three times as much, reports  CNN . In...