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How grading works

Graders read strike, high points and luster. See it on real coins, one idea at a time.

Five things a grader checks, shown on one real 1909 cent. Scroll to zoom in.

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A real coin, up close

What a grader actually looks at.

  1. The whole coinA 1909 Lincoln cent with the designer's V.D.B. initials, photographed for the Smithsonian's National Numismatic Collection.
  2. The strikeA strong strike leaves the letters and digits crisp, with square edges. A weak one leaves them soft and rounded.
  3. The high pointsHair, cheekbone and jaw stand tallest, so they wear first. Graders read them before anything else.
  4. The initialsV.D.B., for designer Victor David Brenner, sat on the reverse rim only in 1909. They returned, smaller, on Lincoln's shoulder in 1918.
  5. The lusterOn an uncirculated coin, light rolls around the fields like a cartwheel as the coin turns. Wear and cleaning break that roll.
1909 V.D.B. Lincoln cent, obverse
1909 V.D.B. Lincoln cent, reverse
1909 V.D.B. Lincoln cent. Photo: National Numismatic Collection, National Museum of American History (public domain). Photo credits
The vault

Every coin gets the same light.

The grader studies your coin the way a dealer does under a lamp: luster on the fields, wear on the high points, color in the recesses. Here is what that light shows.

  1. 2025-D Lincoln cent, uncirculated, obverse
    Mint redFull original color and untouched high points. A 2025-D cent, U.S. Mint photo.
  2. 1909 V.D.B. Lincoln cent, reverse
    The reverse tellsWheat-ear lines and rim marks often decide the grade. A 1909 V.D.B. reverse, Smithsonian photo.
  3. 1943 zinc-coated steel Lincoln cent, obverse
    Right year, other metalA 1943 cent should be steel: a magnet lifts it. A bronze 1943 is a rare error. Smithsonian photo.

Put your coin under the lamp