129 East 62nd Street, date unknown. This neo-Grec style building, constructed between 1873 and 1874 by John Prague, has the triangular pediment (over the door) that is indicative of that architectural style. This is the final building in a row of 15 structures built at the same time, by the same architect, stretching from Park Avenue to the middle of the block on the north side of 62nd Street.