British 50 pence coins are circular coins that are used as legal tender in the United Kingdom. They have a diameter of 27.3mm and are made of cupro-nickel, an alloy of copper and nickel.
The obverse side of the coin features a portrait of Queen Elizabeth II, while the reverse side features a variety of designs that have changed over the years. Some notable designs include the Coat of Arms, the Royal Shield, and the Olympic symbols.
The 50 pence coin was introduced in 1969 to replace the old ten-shilling note and has become an important part of British currency. It is often used to make purchases for goods and services, and is also collected by coin enthusiasts due to its various designs.