LONDON.- Spring 2010 sees the return of the longest running print fair in the world, the London Original Print Fair, 29 April 3 May 2010. The 25th Fair will take place in the main galleries at the Royal Academy of Arts, Burlington House, Piccadilly. It will be the largest ever, with some 60 exhibitors including new participants from America and a specialist in Japanese prints. Dealers, Print Workshops and Publishers come from France, Germany, Ireland and America as well as Britain. In 2009 attendance rose from 6,000 to 10,000 and strong sales were reported in all areas, old master, modern and contemporary. This year the Fair will include first-time