In May 2010, a tattered and brittle map was discovered in storage at the Brooklyn Historical Society. Experts identified it as a rare item, a Bernard Ratzer “Plan of the City of New York” map in its 1770 state. Until then, only three copies were thought to exist. After a painstaking restoration to remove layers of shellac and grime and repair dozens of breaks, the map is now behind plexiglass and ready to be displayed to the public.
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