latten

The term Latten refers loosely to copper alloys, much like brass, employed in the Middle Ages and through to the late 18th and early 19th Centuries, for items such as decorative effect on borders, rivets or other details of metalwork (particularly armour) and for funerary effigies. It was commonly formed in thin sheets and used to make church utensils.
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Noun
1. brass (or a yellow alloy resembling brass) that was hammered into thin sheets; formerly used for church utensils
(hypernym) brass

n. batten, board, lath, thin strip of wood; crossbar

n. slat, lath, batten, rail

(n.)
Sheet tin; iron plate, covered with tin; also, any metal in thin sheets; as, gold latten.
  

(n.)
A kind of brass hammered into thin sheets, formerly much used for making church utensils, as candlesticks, crosses, etc.; -- called also latten brass.