What is Circ, UNC, BU, FDC, Prooflike, BE and Proof?
Those abreviations stand for the quality of coins. They are commonly used in the coin world. However, for euro coins, they might be a slight deviation on the default names. The information below concerns euro coins.
Circ: Circulated. Those coins are circulated and can be found during daily activities, eg during shopping.
UNC: Uncirculated. Those coins have never circulated. The coins are minted, fall of the conveyor in a box and are put in rolls. UNC coins are taken directly from those rolls.
BU: Brilliant Uncirculated. These coins are also not circulated. The coins are minted, but don't fall of the conveyor. Mostly, they are taken from the conveyor and packed or put in a folder.
FDC: Fleur de Coin. Same quality as BU.
Prooflike: The coins are minted in a very specific way. They look like a mirror.
BE: Belle épreuve. See Proof.
Proof: Those coins are also minted in a specific way, but with even more quality. This is the best quality of coins.