This is a one-of-a-kind manuscript survey map of parts of Brooklyn, New York, located near Commodore Barry Park and the Brooklyn Navy Yard. The map covers land surrounding the park from Jackson Street to Division Street and From Nassau Street to Tillary Street. Although the park, today's Commodore Perry Park, here just 'City Park' still exists many of the other streets have since been eliminated. Navy Street, which appears prominently here, remains. Jackson street is no more, but Concord and Nassau still intersect after which Nassau becomes Flushing Avenue. Similarly, what is here labeled Tillary Street is on our map, Park Avenue. The Park itself is much larger today than it was when this map was drawn. This map was drawn by the city of Brooklyn surveyor B. Tolford to reconcile the inheritance of James B. Clarke, here shaded in light blue. The provenance of this map is unclear, but it was clearly part of a larger collection, possibly in a surveyor's office.