A woman who was given a self portrait by Andy Warhol in the 1960s but stashed in in a closet for 40 years, has sold it at auction for £2.4 million.

Cathy Naso had worked as a receptionist for Warhol at The Factory in New York when she was a teenager, and as a gift he had given her a self-portrait.

Since then she kept it wrapped up at the back of her wardrobe - never hanging it on her wall.

That was until she decided to cash in on it and put it up for auction at Sotheby's in Manhattan. It had been expected to sell for £750,000 but it far exceeded predictions by going for £2.4 million.

How come the best we can find in our wardrobe is a broken tennis racquet and what looks like the remains of what used to be a sandwich?