Courtesy Israel Museum

“Oxhide” ingot. Cast into a stretched oxhide shape for ease of carrying, this copper ingot, 25.6 inches long, 14.2 inches wide, and more than an inch thick, is just one of many similar ingots recovered from the wrecks of three Late Bronze Age (14th–13th century B.C.) Canaanite ships. The vessels sank off the coast of Israel, just south of Haifa, more than 3,000 years ago.