© licensed to London News Pictures. LONDON, UK  08/06/2011. Dealer Emily Wynne-Jones dusts a painting by Piet Mondriaan, worth £2,500, at the Olympia International Fine Art & Antiques Fair. All 30,000 items on sale from 150 dealers are vetted for authenticity by a panel of experts. The show opens in Olympia tomorrow (Thursday) and runs for 11 days. Please see special instructions for usage rates. Photo credit should read CLIFF HIDE/LNP
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