Learn Grading: What Are BN, RB And RD? (Brown, Red Brown, & Red)

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CCFPress Press Manager United States 1420 Posts	Posted 10/30/2020 5:05 pm NGC - NGC uses a numeric grade to succinctly describe a problem-free coin's condition. Certain coins, however, require a more nuanced description of their condition and appearance. For these coins, NGC graders follow the numeric grade with a range of designations, often called "Strike Characters." Read More: Learn Grading Among the most common strike characters are those used for copper coins. When copper coins are struck, they typically display distinctive red luster. Over time, this red luster fades and eventually turns to a rich brown patina. NGC uses three primary strike characters after the numeric grade to describe the amount of red and brown present on the coin's surfaces: "RD" (for red), "RB" (for red brown) and "BN" (for brown). A coin with a RD strike character must exhibit at least 85% of its original red luster. Read the Entire Article Report this Post to the Staff

sel_69l Bedrock of the Community Australia 21786 Posts	Posted 10/30/2020 7:54 pm The red of a freshly struck copper or bronze coin can be preserved, but usually, storage in an airtight capsule is required. Nevertheless, I have seen many uncirculated examples of Indian Quarter Annas over a century old, that have retained almost all of their original red luster, albeit often with small (sulfide/oxide) 'carbon spots'. Examples have been posted here in the CCF. Pure copper without any oxide or sulfide at all, is pinkish red in color. Report this Post to the Staff
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