Statue of Liberty Upper New York Bay on Liberty Island south of Ellis Island, which together comprise the Statue of Liberty National Monument. Both islands were ceded by New York to the federal government in 1800. As agreed in an 1834 compact between New York and New Jersey that set the state border at the bay's midpoint, the original islands remain New York territory though located on the New Jersey side of the state line. Liberty Island is one of the islands that are part of the borough of Manhattan in New York. Land created by reclamation added to the original island at
Statue of Liberty of the copper skin over decades, leaving two layers of coal tar, originally applied to plug leaks and prevent corrosion. Blasting with baking soda powder removed the tar without further damaging the copper. The restorers' work was hampered by the asbestos-based substance that Bartholdi had used—ineffectively, as inspections showed—to prevent galvanic corrosion. Workers within the statue had to wear protective gear, dubbed "moon suits", with self-contained breathing circuits. Larger holes in the copper skin were repaired, and new copper was added where necessary. The replacement skin was taken from a copper rooftop at Bell Labs, which had a patina that