A dark, often round spot of carbon or corrosion on a coin’s surface.
Words you'll hear in attribution—defined for you
Browse A–Z definitions for die variety vocabulary and terms we use on CopperCoins.
6 matches for Corrosion — Clear search
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Corrosion
Surface deterioration, often seen as pitting, roughness, or oxidation.
Details Grade
A grade assigned to a coin with a problem such as cleaning, damage, corrosion, or repair.
Die Rust
Corrosion on a die surface that can transfer as raised roughness or pits on struck coins.
Problem Coin
A coin with damage, cleaning, corrosion, repair, or another issue that affects marketability.
Verdigris
Green corrosion commonly associated with copper or bronze coins.