Also known as 'Chahar-a'ina'.

The '4 mirrors'. Four, usually steel, plates worn over a shirt of mail in Persia and India. They are rectangular and the two worn on the breast and back are considerably larger that those worn at the sides. The side plates are cut away at the top to allow free use of the arms; if the front plate is unusually large it is also cut away at the top. These plates are never large enough to meet around the body, and often leave as much mail exposed as covered. They are hung from the shoulders by straps and are connected to each other by crossed straps from the top of one plate to the bottom of the next.