 Bi-metallic coin

Bi-metallic coins are coins consisting of two ("bi-") metals or alloys, generally arranged with an outer ring around a contrasting center.Common circulating examples include the ₹10, €1, €2, 2 and 5 PLN, 50 CZK, 100 and 200 HUF, 1 and 2 BGN, United Kingdom £1 and £2, Canadian $2, South African R5, Turkish 1 lira, IDR 1K, Hong Kong $10, Argentine $1 and $2, Brazilian R$1, Chilean $100 and $500, Colombian $500 and $1000, and all Mexican coins of $1 or higher denomination.