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Questions, feedback, or a correction to our data: we read everything and we would rather fix a number than defend a wrong one.

What to write about

  • Corrections. If a sold-comp figure, date, grade, or fact looks wrong, send the item and what you are seeing. We re-check against the source sales and correct it. See our editorial standards.
  • Grading research questions. Ask about editions, printings, grader differences, or how our methodology works.
  • Feedback. Tell us what would make the research more useful, or what item you want cataloged next.

More about us: about Mint Condition and our sold-comps methodology.