Comelli and colleagues measured the iron blade of a dagger from the tomb of Tutankhamun (14th century BCE) with portable X-ray fluorescence and found about 10.8% nickel and 0.58% cobalt, a composition that strongly supports a meteoritic origin.
As reported in: Comelli, D'orazio, Folco et al. (2016). The meteoritic origin of Tutankhamun's iron dagger blade. Meteoritics & Planetary Science. doi:10.1111/maps.12664
Rehren and colleagues showed that nine small iron beads from two burials at Gerzeh, northern Egypt, dated to about 3200 BC and the earliest known iron artefacts, were made by hammering meteoritic iron into thin sheets and rolling them into tubes. Strung with gold, lapis lazuli and carnelian, they show meteoritic iron was treated as a precious material.
As reported in: Rehren, Belgya, Jambon et al. (2013). 5,000 years old Egyptian iron beads made from hammered meteoritic iron. Journal of Archaeological Science. doi:10.1016/j.jas.2013.06.002