Bi-metallic coin dated 2006 (minted at Noida). Since 1996, Canada has also produced bi-metallic $2 coins (nicknamed "toonies"). Great Britain has issued a bi-metallic 2-pound coin since 1997; and Singapore has issued a bi-metallic 1-dollar coin since 2013. The first ever tri-metallic circulating coins were 20-francs coins introduced in France and Monaco in 1992. These were similar to the corresponding bi-metallic 10-francs coins, but had two rings instead of one. As well as circulating coins, where they are generally restricted to high-denomination coins, bi-metallic coins are often used in commemorative issues, often made of precious metals. For example, the only bi-metallic coin
New Zealand two-dollar coin Ian Rank-Broadley, which had been introduced to the coins of the pound sterling in 1998. It reversed the position of the writing, moving the Queen's name to the right and the country's name to the left. The reverse features an eastern great egret ("Ardea alba modesta") (Maori: "kotuku"). It is sacred to New Zealand's indigenous Māori people, and highly endangered within the country, only inhabiting the Okarito Lagoon on the South Island. This continues the theme of birds among the dollar coins; the one-dollar coin has a kiwi, unique to New Zealand, on its reverse. The edge is fully milled,