Possible Clues:

• Piece of armour covering the chest
• It was worn in war, once
• Piece of armour in Arab steel alloyed with little platinum
• This deflected battle spear
• In battle, spear diverted - by this?
• Armour on chest
• Armour piece that protects the chest
• Protection up front
• Piece of armor
• Chicken part and what it sits on