Clipped Planchet

What this classification means

A blanking error in which part of the coin blank is missing because punches overlapped the edge or a prior hole. A useful identification does more than name an unusual shape. It explains when in production the feature formed, what physical evidence should remain, and which ordinary forms of damage can imitate it.

Diagnostic evidence to record

Look for the Blakesley effect, metal flow, incomplete or weakened rim opposite the clip, and a shape consistent with blanking geometry.

Repeatable method: start with Error or damage?, then use the identification workflow and value guide. The page below should add evidence specific to this error class, variety, coin, or damage lookalike.
• Compare with certified examples and mint-production references, not viral price claims.

Common lookalikes and failure points

Cutting tools, shears, grinding, corrosion loss, and deliberate clipping usually leave disturbed metal or sharp post-mint surfaces.

A practical examination sequence

1. Confirm the host coin. Identify denomination, design subtype, date, mint, composition, and expected weight.
2. Describe before naming. Write what the metal actually does without using a marketplace label.

Value factors