The William White Postcard Collection (approximately 1930-1940) consists of three postcards depicting the Hoover Dam (Boulder Dam) on the border of Nevada and Arizona. One postcard showcases Oskar J. W. Hansen’s “Figures of the Republic” sculptures near the Hoover Dam. Another postcard displays an interior view of the visitor’s gallery at the Hoover Dam. The final postcard depicts the Hoover Dam at sunset.