On Tue, 05 Apr 2005 09:16:30 GMT, (s--p--o--n--i--x)
wrote:

That's because copper coins aren't copper, afaik.

They used to be bronze, now they're copper over steel. As far as the
surface goes, they still clean as for copper.

Cillit bang is useful stuff, but it's well overpriced and you can buy
the same thing much more cheaply without the brand name.