Copper tends to turn green when water is left on a coin.
1943 damaged coin:

Dark color could be a stain on the coin.
Rust appears on items made of steel.
Some coins can tone with a bit of rust color:

1943 damaged coin:

Dark color could be a stain on the coin.
Rust appears on items made of steel.
Some coins can tone with a bit of rust color:

Edited by coop
03/12/2016 3:32 pm
03/12/2016 3:32 pm






















