No caption accompanies this image. It shows the exterior of the Mackay mansion's "glass piazza" that had double-pane windows.
A photograph of the interior of the glass piazza also has been placed here in the Library.
Another photograph of the interior of the glass piazza published in The New York Times on January 28, 1906 also has been placed here in the Library.
See Harbor Hill, Clarence Hungerford Mackay's Mansion.
