>> Although... the coins aren't pure copper, are they?
>
>  No, they are in fact mild steel, or at least some kind of ferrous alloy. 
> Hold a magnet to a newish copper coin. I say copper because they're 
> actually copper plated. They started doing this (in the UK), about 8 years 
> ago I think.

Aha! So we just need to collect the old ones.  I propose using a magnet to 
sort them.

Post a reply to this message