bractea
Bractea is the Latin term for a thin plate or sheet of metal. In archaeology and numismatics, the word is used to describe both the thin sheet used as a planchet for coinage and the coins struck on such sheets. The English adjective bracteate derives from the same Latin root.
Bractea coins are typically hammered from an unusually thin metal sheet rather than from a standard, thicker
Designs on bractea coins vary but commonly depict religious symbols, figures, animals, or crosses, sometimes with
Bractea coinage is distinct from later coins struck on thicker planchets and from plated or cast coins.