The Chalcolithic-period Nahal Mishmar hoard in the Judean Desert west of the Dead Sea contains a number of arsenical bronze (4–12% arsenic) and perhaps arsenical copper artifacts made using the lost-wax process, the earliest known use of this complex technique.
A significant archaeological find from the Chalcolithic period in Nahal Mishmar, Judean Desert, near the Dead Sea, features a collection of arsenical bronze (4–12% arsenic) and possibly arsenical copper artifacts created employing the lost-wax process, marking its initial appearance.