LONDON.- Sotheby’s sale of the Arts of the Islamic World to take place in London on the 6th April will offer an array of beautiful and rare objects, paintings and manuscripts which highlight the achievements of artists and craftsmen from across the Muslim world. The sale is particularly rich in works which reveal the cultural efflorescence which took place during the Middle Ages on the Mediterranean seaboard from Islamic Spain to the Levant. A pre-sale exhibition will take place at Sotheby’s New Bond Street headquarters on the 1, 3, 4, 5 April 2011. Representing the heritage of Al-Andalus and North Africa is a pair of Almohad-period bronze doorknockers originating from the twelfth century (lot 299), estimated at £180,000 – 250,000*, and a carved wooden door panel from