Difference between bu and au "updated"

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 In coin collecting, "AU" and "BU" are both terms used to describe the condition or grade of a coin. Here's how they differ:

  1. AU (About Uncirculated):

    • Coins graded as AU are typically coins that show very little wear but may have some slight signs of circulation.
    • AU coins may have traces of wear on the highest points of the design, such as the raised areas of the coin's relief.
    • Details on AU coins are generally well-defined, with only minor loss of detail due to wear.
    • AU coins often have luster, though it may be slightly diminished compared to uncirculated coins.

  2. BU (Brilliant Uncirculated):

    • BU coins are coins that have never been circulated and retain their original mint luster.
    • These coins typically exhibit no signs of wear or circulation, with sharp, well-defined details throughout the design.
    • BU coins often have a bright, reflective surface due to the preservation of the coin's original minting finish.
    • They are considered to be in pristine condition and are highly sought after by collectors.

In summary, the main difference between AU and BU coins lies in their level of wear and preservation. AU coins have seen some circulation and show minor signs of wear, while BU coins are in pristine, uncirculated condition with no wear or signs of handling. Both grades are important in numismatics, with collectors often seeking examples of both to complete their collections.

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