Emin & Hockney's secret auction

Postcard-sized artworks by Tracey Emin and David Hockney are among more than 500 exhibited at an East Sussex museum and being sold for as little as 99p at a secret charity auction.

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Works by famous artists up for bids

Without knowing who has created the works, people can bid for them on eBay until the auction, called The Big Art Secret, closes on Sunday. Proceeds from the sale will go to St Wilfrid's Hospice. Hockney's work is "an ink and colour crayon drawing on a postcard" and Emin has donated four postcards.

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