Kopper House, ca. 1920.

Referred to as the "oldest house in Harlem" at the beginning of the 20th century, the Kopper House was built in 1790 by architect Johann Hermann Raub for his family. As can been seen pointedly in this photograph, the front of the house (the porch at right) was constructed in brick, while the rear was clapboard. The front of the house was rendered in the more expensive material and the eventual layout of the street (here 124th Street) provided the stark view of the two halves. Originally the house would have been surrounded by a large plot of land and an orchard of fruit trees brought to this country by its builder. The house, referred to as "Haunted House" in a 1924 NY Times article about it, survived into the early 1930s but it is unclear when it was finally demolished.