This image shows the Mackay mansion's great hall and front doors as they appeared in 1908.
The caption accompanying this image reads as follows:
1908
Six other images of the great hall have been placed here in the Library, the first seen here, the second seen here, the third seen here, the fourth seen here, the fifth seen here, and thesixth seen here.
See Harbor Hill, Clarence Hungerford Mackay's Mansion.