The plaque on the wall says:
Sugar Hill - Prison Window
This window was originally part of the five story Sugar House built in 1763 at the corner of Duane and Rose Streets and used by the British during the Revolutionary War as a prison for American Patriots. The Sugarhouse was demolished in 1892 and replaced by the Rhinelander Building incorporating this window into the faced as an historical artifact.
The Rhinelander building was demolished in 1986 and the site is now occupied by Police Headquarters.
John Lindsay, Mayor (1965)
via Urbanist
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