I (Dad) just spent two weeks in Manhattan installing mahogany paneling and furniture that we made in a plastic surgeon's office. The walls were bare when we first arrived on 84th street just off Madison Ave.
One night we went up to Harlem to visit Josh and Eurydicy( and little Evlalia) in their reclaimed brownstone. The place was pretty impressive. Did you know that there is a 75 foot wide strip of grass between the backs of the brownstones . In Manhattan! I was amazed.
A close up of some of the paneling.