This image shows the bath-dressing room in Katherine Mackay's (Katherine Alexandra Duer (US1797spouse1)) bedroom. The website that posted this image (see below) describes it this way:
"The bath-dressing room floor was covered in a carpet made from mountain sheep pelts. The space contained a fireplace, dressing table, chaise lounge, books potted palms and a sunken tub. Difficult for the House Beautiful writer to locate, the three-feet deep tub, carved from a single block of marble had alone cost of $6, 300,00."
Note: the sunken tub can be seen in the corner of the room, left center in the photograph.
Also, note the clock and framed photographs in the center of the mantle. A close-up image of the clock and framed photographs can be seen here.
So, too, a close-up image of the photographs at the far left on the fireplace mantle can be seen here.
See Harbor Hill, Clarence Hungerford Mackay's Mansion.