Gangel's auction has a third part, a general consignment sale that includes a revolver once owned by Western legend Wyatt Earp, and the rifle Virginia Governor Henry Alexander Wise used to send famed abolitionist John Brown to the gallows in 1859.
High-ranking dignitaries will include UN secretary general Kofi Annan, South African President, Thabo Mbeki, Fifa chief Sepp Blatter and German legend Franz Beckenbauer.