Iron Cross.

Chambers's Encyclopaedia, Volume 6: Humber to Malta, p. 222

Iron Cross. A Prussian order, instituted on March 10, 1813, by Frederick-William III., to be conferred for distinguished services in war. It was made of iron to commemorate the grim 'iron' period at which it was created. The decoration consists of a Maltese cross of iron, edged with silver, and is worn round the neck or at the button-hole. The order was revived by William I. on 19th July 1870, on the eve of the great war with France. The grand cross, a cross of double the size, is presented exclusively for the gaining of a decisive battle, or the capture or brave defence of a fortress.

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