terneplate

Sheet iron or steel plated with an alloy of three or four parts of lead to one part of tin, used as a roofing material.

An inferior kind of tin-plate, in making which the tin used is alloyed with a large percentage of lead.

Thin iron sheets coated with an alloy of lead and tin; -- so called because made up of three metals.

Thin iron sheeting coated with an alloy of lead and tin.