A Townhouse With Many Fireplaces

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155 East 71st Street, center, a 6,400-square-foot five-story brick and stone townhouse in Lenox Hill, from the early 1900s, has two duplex apartments, with a fireplace in each room.

Katherine Marks for The New York Times

A Townhouse With Many Fireplaces

A five-story townhouse in Lenox Hill, circa the early 1900s, has two duplex apartments and a retail space on the ground floor.