Byline: AMAR SINGH
A PAINTING of a grotesque nude woman by Francis Bacon is set to sell formore than [pounds sterling]25 million as London's two big auction houses go head to head incontemporary art sales.
Study Of A Nude With Figure In A Mirror, painted in 1969, is expected to be theheadlinegrabbing work in a week of auctions at Sotheby's from 5 February.
Other lots include an Andy Warhol portrait of Judy Garland and works byPicasso.
It will be the first time Sotheby's has held a contemporary art auction formore than a single dayreflecting the huge appetite for topend modern works in today's market.
On Monday 4 February, rival auction …