What are Doubled Die Error Coins? How to Find DDO / DDR Coins?
Let’s talk all about DOUBLED DIE (DOUBLE DIE) error coins! The coin die that strikes double die coins has a partial or fully doubled image. Therefore, the coin has two…
Let’s talk all about DOUBLED DIE (DOUBLE DIE) error coins! The coin die that strikes double die coins has a partial or fully doubled image. Therefore, the coin has two…
Rusted Die Definition: A die with a rusted or corroded surface. The roughened and pitted areas will be transferred to the coin as areas of raised metal. This 1921(P) Morgan…
Definition: A coin struck inside a collar whose diameter is wider than normal. This rare error is subtle and is often only detected when an otherwise normal-looking coin gets stuck…
Lathe Rings Definition: These concentric rings are produced by a lathe which shapes the cone-shaped face of the unfinished working die. The cone is supposed to be polished smooth before…
Definition: Tiny raised circles, semicircles, and occasionally spirals that are most often found in or near the center of the design. The imperfections can be found on either face. First…
The 1886 Morgan dollar, known more officially as the Liberty Head dollar, is a silver coin that was struck at the United States Mint in Philadelphia. Nearly 20 million 1886…
The overall price of producing U.S. circulating coins fell for a fifth straight year even as the cost of making cents and nickels remained above their face values for an…
Notes on Merovingian Tremissis This gold coin dates from between 580AD and 630AD. The Merovingian Dynasty was based in ancient Gaul (which is now France) and dates from the middle…
Grading Scales Since rare coin quality varies widely, numismatists have adopted several coin-grading methods to assign more specific levels of quality to rare coins. The overwhelmingly popular method to use…
Certification Organizations Several independent organizations exist for the sole purpose of grading coins, including the highly reputable Professional Coin Grading Service (PCGS) or Numismatic Guaranty Corporation (NGC). For a nominal…