LONDON (Reuters) - A handbag belonging to former Prime Minister Margaret Thatcher sold for 25,000 pounds at a charity auction late on Monday, Christies said. Top price on the night was paid for the chief timekeepers stop watch that recorded Roger Bannisters first four-minute mile in 1954. Donated by Archer himself, it fetched 97,250 pounds and proceeds will go to the Oxford University Athletics Club. Archer had said before the sale that he expected Thatchers handbag, which she owned for over 30 years, to sell for around 100,000 pounds, but in the end it fetched a quarter of the amount.