If you want to buy a rare 2,500-year-old helmet that belonged to an ancient Greek warrior, this very artifact is heading to the auction block, where it is expected to sell for roughly $111,000.

The balaclava has roots in the Crimean War of the 1850s, but it's as modern as the synthetic fabrics used to make it today.

Such helmets were iconic of the ancient Greek style of infantry fighting and have become emblems of the ancient world. The Apollo Art Auctions company, which is auctioning the item, said the ...