The artist's 1940 painting, El sueño (La cama), is expected to sell for $40 to $60 million on Thursday night.
An arresting self-portrait by Frida Kahlo, featuring the artist slumbering beneath a tangle of vines in a carved canopy bed with a skeleton reclining above her, will be auctioned by Sotheby's on Thursday night in New York. The sale of the 1940 painti... [2168 chars]