Missing Clad Layer

What this classification means

One outer clad layer is absent before striking, exposing the core and changing weight and color. 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

Check weight deficit, edge layering, strike detail, surface continuity, and non-destructive composition evidence.

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

Chemical stripping, plating removal, environmental corrosion, and surface discoloration are common imitations.

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