Brooklyn Historical Society. According to the New York Times, the society doesn't know how it got to their Connecticut warehouse but the name Pierrepont was clearly legible on the back of the linen.
The map shows Old Fulton Street and Flatbush Avenue surrounded by farms and woods in "Brookland." The streets of lower Manhattan are shown in detail, with farms and trees to the north
The society plans a viewing sometime in the future. Until then, click on the interactive map at the Times to see it yourself.
Go to McBrooklyn's HOME PAGE.