Lamination Error

What this classification means

Metal separates, peels, cracks, or flakes because of impurities or poor bonding in the planchet strip. 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

Inspect whether design continues over or beneath the affected metal, whether the flap is retained, and whether the surface is granular rather than cut.

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

Plating bubbles, corrosion, adhesive residue, gouges, and impact peeling are frequently mislabeled as laminations.

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