SummaryAstronomical observatory. Domed structure on rectangular building with section of wood fence and several residential buildings in left background. Observatory was built in the 1870s by Rev. Dr. John Mason Ferris on the grounds of his home, the former Schoonmaker Inn, in Flatbush, holding a 5 inch telescope made by Alvan Clark & Sons. Structure is referenced in Brooklyn Daily Eagle, July 22, 1882, p.2.
NoteOn recto: building framed inside large, white circle with double thin black outline. On verso: date inscribed: 19--. Retouched. Title from inscription on verso.