Thanks BenLurkin.
The first recorded use of copper as an infection-killing agent comes from Smith's Papyrus, the oldest-known medical document in history. The information therein has been ascribed to an Egyptian doctor circa 1700 B.C. but is based on information that dates back as far as 3200 B.C. Egyptians designated the ankh symbol, representing eternal life, to denote copper in hieroglyphs.
That's weird, I didn't know Smith was a name common in ancient Egypt. Maestro?
/frenchhorns /rimshot
You may be confused because it was sometimes spelled 'Smythe'. :^D
{How tragic that Smith Bros cough drops has gone the way of all flesh!}