Dutch metal

Dutch metal is a form of brass.

The alloy typically consists of 85–88% copper and the remainder being zinc.

It is also known by other names such as "composition gold leaf", "Dutch gold", "Schlagmetal" and "Schlag leaf".

[1] It is very malleable and ductile and so can be beaten into very thin sheets.

[2] The addition of arsenic produces an alloy with similar properties but coloured white.

German packet of Dutch metal in foil form, early 20th-century