As indicated by the caption, this image shows one of a set of six exceptional Louis XV fauteils with tapestry covers that were owned by Clarence Mackay.
The caption accompanying this image reads as follows:
One of a set of six exceptional Louis XV fauteils with tapestry covers that were owned by Clarence Mackay. Today in the collection of the Boston Museum of Fine Arts, they were a bequest of Mackay's friend Forsythe Wicks
See Harbor Hill, Clarence Hungerford Mackay's Mansion.