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Known Errors

Full Broadstrike

The entire coin was struck outside the collar, creating a uniformly wider coin with the full design visible.

How to check: Measure the coin's diameter. It should be noticeably wider than normal with a smooth edge instead of reeded.

$25 - $300+

Partial Broadstrike

Part of the coin was in the collar while part was not, creating an uneven expansion.

How to check: One side of the coin may appear wider than the other, with partial reeding on part of the edge.

$15 - $150

Broadstrike with Partial Collar

The coin was partially restrained by the collar, creating a step or ledge on the edge.

How to check: Examine the edge for a visible step where the collar contact ended.

$10 - $100

Quick Checks

Frequently Asked Questions

How much is a broadstrike coin worth?

Values range from $10 for a common cent broadstrike to $300+ for larger denominations. The wider the spread and the scarcer the denomination, the higher the value.

How do broadstrikes happen?

The retaining collar fails to rise into position before the dies strike the planchet. Without the collar, the metal spreads outward beyond normal diameter.

How do I verify a broadstrike?

Genuine broadstrikes have consistent strike quality across the entire expanded surface. The edge is smooth or partially smooth. Upload to ErrorHunt AI for verification.

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