Split Planchet After Strike

What this classification means

A flawed planchet separates after receiving the design, sometimes leaving matching halves. 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 design transfer on both pieces, granular internal metal, matching weight total, and edges consistent with a lamination split.

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

Saw cuts, peeled plating, broken cast copies, and mechanical separation are important alternatives.

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