This unique coin hails from the Free City of Braavos, minted by the secretive Iron Bank. It is struck in iron in the square Braavosi style. The obverse depicts a helm of a Braavosi warrior, similar to the one worn by the Titan of Braavos. The reverse features an hourglass with open hands. The inscribed High Valyrian text, "egio Tistālior gurotriri emilza", translates to: "The Iron Bank will have its due." The iron Square is a common small denomination coin that would be found in Braavos and occasionally circulated throughout Essos and Westeros.

Material: Solid iron, 15.8 grams
Size: 1 in (2.7 cm) diameter