From the press release:
Palace Seen and Unseen explores Palace of the Governor's rich history
Bottom left: Creator: C.G. Kaadt
Title: Rough Riders being sworn in by Captain Charles L. Cooper in front of the Palace of the Governors, Santa Fe, New Mexico
Date: 1898
Negative Number: 006051
Note: Representative image at left is often cropped for display purposes. Downloaded high-resolution images are not cropped.