Storage & Handling

Not all corrosion looks the same. Sometimes it’s a faint green haze creeping along the edges. Other times it’s a thick, black crust that seems to rise up out of the metal itself. Each color tells a different story, about what the coin has been through, what environment it’s been exposed to, and what kind…

Corrosion is one of the most destructive forms of damage a coin can suffer. It eats away at the surface, breaks down metal at a chemical level, and leaves behind pits, discoloration, or flaky crust that can make a coin nearly unrecognizable. Most of the time, corrosion happens when a coin is exposed to moisture,…