[2] The Royal Berlin Foundry started with the production of iron goods such as vases, knife stands, candelabra, bowls, plaques and medallions, as well as more commercial articles such as fences, bridges and garden furniture.
In return the people were given iron jewellery such as brooches and finger rings, often with the inscription Gold gab ich für Eisen (I gave gold for iron), or Für das Wohl des Vaterlands (For the welfare of our country / fatherland), or with a portrait of Frederick William III of Prussia on the back.
[5] It is not widely known, but in 1916 another, similar attempt was made in Germany to promote iron jewellery and to fund the German share in the First World War.
Today, Berlin iron jewellery are collector's items and true pieces are usually found in museums or private collections.
[3] At first the style of the designs, especially during the Napoleonic period, was Neo-Classical, incorporating plenty of fretwork and moulded replicas of cameos.
Although this type of phosphoric cast iron is rather hard and brittle, strength is not the main purpose of the metal when it is used in jewellery.