Posted 08/21/2012 10:24 pm
Hello Matthew - 
to the forum.
Nice coin, I have no idea what it is so I'm assuming its Greek - an area I don't collect so know little about unfortunately
Your coin looks fine, I dont think you need to worry about Bronze Disease.
Generally the harder the encrustation the less you should be worried about it. Yours looks solid and is almost certainly harmless verdigris.
Dusty, flaky, light green deposits are what you need to be worried about, often it looks like a fine 'fur' or even a 'frost' that disintegrates on touch. It can appear in other colours but is not very common.
If your still concerned gently pick at some of the green areas with a needle, gently is all it will need (no digging and not hard enough to scratch the coin) and see if the deposit starts to disintegrate. I dont think they will.
to the forum.Nice coin, I have no idea what it is so I'm assuming its Greek - an area I don't collect so know little about unfortunately
Your coin looks fine, I dont think you need to worry about Bronze Disease.
Generally the harder the encrustation the less you should be worried about it. Yours looks solid and is almost certainly harmless verdigris.
Dusty, flaky, light green deposits are what you need to be worried about, often it looks like a fine 'fur' or even a 'frost' that disintegrates on touch. It can appear in other colours but is not very common.
If your still concerned gently pick at some of the green areas with a needle, gently is all it will need (no digging and not hard enough to scratch the coin) and see if the deposit starts to disintegrate. I dont think they will.
