Patina adds character to copper and bronze antiques—just don't confuse it with rust. When it comes to metal—be it a copper pan or an antique made from bronze—differentiating between a patina ...

An alloy of copper and tin with a similar color to Nordic Standard copper finish. When exposed to the atmosphere, the surface will change gradually to a stable, dark chocolate brown or even black ...

This story appears in the March/April 2017 issue of National Geographic History magazine. “To the King of Egypt, my brother. Thus says the King of Alashiya, your brother: ... Send your messenger ...

locks and doorknobs Bronze (alloy of copper, aluminium and/or nickel) Non-ferrous alloy, harder than brass and corrosion resistant, reddish/yellow in colour Castings, bearings Stainless steel ...