what is the outer surface of a statue called
The noble rust, as Italians call it, which gives copper and bronze so beautiful a surface color, has covered the Statue of Liberty with a malachite green that does not disintegrate the metal as rust devours iron. Galvanic action was avoided by insulation between all iron and copper parts.rom these, large wooden molds were made of the statue's surface. Using the repousse method, copper sheets were hammered within these molds to reproduce the statue's contours on the the plates. In all, 350 plates make up the statue's surface. Two inch-wide straps of iron were forged to fit inside each plate.