Gemsbok Skull Plate (Oryx gazella) for sale, with horns measuring approximately 33 & 37 inches long. - Review all photos. Our gemsbok horns on skull plates are from wild African gemsbok and will have imperfections normally found on all wild animal horns. We are direct importers of African animal horns. These gemsbok horns are a by-product of the African government's culling programs and the African farming industry. These horns have been cleared for legal entry into the U.S. by the U.S. Fish and Wildlife Service and U.S. Customs Department.