In message , Rod
writes
On 26/01/2010 22:50, S Viemeister wrote:
On 1/26/2010 4:33 PM, Appin wrote:
The

from contains these words:

How do you get new copper to look naturaly aged green and stable,

Horse urine was the traditional material used in Eastern Canada where
there were and are a lot of copper roofs in the Montréal - Ottawa area.

An architect I used to know, claimed that the roofers were encouraged to
pee on the copper roof...

Easier than getting the horses to do so.

I dunno

once you got them on the roof, of course ...

--
geoff