In article ,
"Edwin Pawlowski" wrote:

Second layer is either lead or zinc

Hopefully zinc... lead wouldn't be too healthy.
--
Owen Lowe
The Fly-by-Night Copper Company
____

"I pledge allegiance to the flag of the
Corporate States of America and to the
Republicans for which it stands, one nation,
under debt, easily divisible, with liberty
and justice for oil."
- Wiley Miller, Non Sequitur, 1/24/05