What is bu in coins?

BU stands for Business Strike, which is a term used to describe coins that are minted for circulation and general economic use. These coins are typically produced in large quantities and have a standard level of quality.

BU coins often refer to modern coinage, such as those issued by government mints around the world. These coins are struck with commercial production techniques, using modern equipment and processes. They undergo strict quality control measures to ensure that they meet the required specifications and are suitable for general use.

BU coins are typically made from base metals such as copper, nickel, and zinc for standard circulating coins. However, precious metals like gold and silver can also be used in the production of collector or commemorative BU coins.

The term "BU" is commonly used in the numismatic community to differentiate these coins from Proof coins. Proof coins are specially minted for collectors and have a higher level of detail, striking, and finish. BU coins, on the other hand, are intended for circulation and are more commonly encountered in everyday transactions.

Collectors often seek BU coins for their numismatic value or to complete their collections. These coins can vary in value depending on factors such as rarity, condition, and demand.

In summary, BU coins are business strike coins that are minted for regular circulation and economic use. They are produced using commercial production techniques, undergo quality control measures, and are commonly encountered in everyday transactions. Collectors often seek BU coins for their numismatic value and as part of their collections.