CoinHub Labs / Identify & Research Coins
Coin Variety Attribution Assistant
Enter the denomination, series, date, mint mark, side, and feature to narrow possible die-variety categories and learn what diagnostics to check next.
Variety Assistant
No variety check yet.
Variety Assistant: Doubled dies, Wide AMs, Close AMs
Quick answer: A variety result should be treated as a possible match, not a confirmed attribution, until diagnostics are checked against recognized references or an expert service.
What To Check First
Collector checks
- Date, mint mark, denomination, side, exact feature, and known diagnostic area.
- Whether the feature resembles a known variety or weaker machine doubling.
- Which closeup photos are needed before using variety language.
Best next steps
- Compare against recognized diagnostics for the exact date and mint mark.
- Keep possible match wording until attribution is confirmed.
- Use sharp photos of date, mint mark, lettering, designer initials, and the feature.
How To Use This Tool
Steps
- Enter the coin type, date, mint mark, and area of interest.
- Choose the feature that appears unusual.
- Compare the result against known diagnostics and use expert attribution before selling as a variety.
Example Uses
- Checking a Lincoln cent for a Wide AM or Close AM reverse.
- Researching a possible 1955 doubled die cent.
- Comparing an unusual quarter reverse feature to known varieties.
What This Result Means
The output lists possible categories and diagnostics. It is a research filter, not an official attribution.
What This Tool Cannot Do
This tool cannot confirm a doubled die, assign an FS number, or replace recognized attribution services.
CoinHub Labs tools are educational resources. They do not provide guaranteed appraisals, authentication, official grading opinions, confirmed variety/error attributions, or binding offers.
Photograph the diagnostic area
Take sharp, well-lit closeups of the date, mint mark, lettering and suspected feature. Compare recognized diagnostics and seek expert attribution. Keep a possible match qualified until verified; do not turn a suggested match into a guaranteed doubled-die claim.