Definition of "latten"

(archaic or historical) An alloy of copper and tin, similar to bronze, with a sufficient portion of tin to make it a pewter-like color with yellowish tinge (rather than the brownish-gold color of bronze of higher copper content), once used in thin sheets and for domestic utensils and light-duty tools.

Sheet tin; iron plate, covered with tin; also, any metal in thin sheets.  examples