LONDON.- The earliest known accurate panoramic view of Mecca is one of over forty-five important objects to be loaned by the Nasser D. Khalili Collection of Islamic Art to the British Museum for the exhibition Hajj: journey to the heart of Islam which will be on view in the Round Reading Room from 26 January to 15 April 2012. The Khalili Collection is the biggest single lender to this landmark exhibition, the first devoted to the Hajj, the pilgrimage to Mecca which is central to the Muslim faith. The view of Mecca dates from circa 1845 and is remarkable for its comprehensiveness and accuracy. Executed in ink and opaque watercolour by Muhammad ‘Abdullah, the Delhi cartographer commissioned by the Sharif of Mecca to depict the sacred monuments of his