1866 Quarter Error List with Pictures
Follow the eagle’s arrows toward the last A in AMERICA on the back of an 1866-S quarter. A documented example carries a raised crack along that route.
The coin, graded PCGS MS62, sold for $2,990 in September 1999. This historical result belongs to the complete scarce-date quarter, not just its thin line.
Our 1866 Liberty Seated Quarter error guide explains the feature below, with an estimated whole-coin range of $500–$20,000.
1866 Liberty Seated Quarter Crack from the Arrows through AMERICA
A thin raised line travels from the eagle’s arrows through the final A in AMERICA. It records a crack in the steel stamping tool rather than a cut made into the coin.
During striking, silver entered that narrow opening and formed a raised copy. Collectors call the tool a die and this feature a die crack.
The documented example is a San Francisco ordinary strike graded PCGS MS62, an unworn coin with noticeable marks. Its specific route provides a useful comparison; a random line on another part of the coin does not.
Estimated Value
Heritage’s historical list records the cracked PCGS MS62 example at $2,990 in September 1999. The later page’s main auction coin is a different, higher-grade specimen.
Estimate $500–$20,000 for genuine examples across worn and attractive unworn conditions. The scarce 1866-S date and surface quality account for much of that whole-coin value.
A visible crack does not cancel the effects of cleaning, scratches, or wear, and its presence alone does not justify an exceptional-grade price.
How to Identify
Locate the arrows beside the eagle and the final A in AMERICA before enlarging the back. Keep both landmarks in one photograph so the line’s route is easy to follow.
Use light from the side to check its height. The expected feature is raised, while a later scratch cuts into the surrounding silver.
Inspect the point where the line crosses the A, not just the open space nearby.
Then turn the light and compare the same route with a reliable photograph of the recorded example. A dark streak or one short raised burr cannot establish the complete tool crack.
Include the S beneath the eagle in your full-coin view. The San Francisco mintmark and continuous arrows-to-final-A line together provide the specific check for this reported variety.
Conclusion
The useful 1866 error check follows one clear route: the arrows to the last A in AMERICA on an S-mint quarter. Confirm that the line rises above the surface before treating it as a tool crack.
The estimated $500–$20,000 range covers the entire coin, while $2,990 records one historical MS62 sale. Mint, wear, and surface preservation remain essential when choosing a comparison.