In 1912 Julius Rosenwald, a wealthy former president of Sears, Roebuck and Company, joined the Board of Directors of Booker T. Washington's Tuskegee Institute. Washington asked Rosenwald to fund a series of rural schools for African Americans in the South, to improve their educational opportunities. Ultimately over 5,000 schools were built and known at the time as Rosenwald Schools. The National Trust for Historic Preservation has them near the top of their most endangered places list.
This one was the Poolesville (Maryland) Colored School, built in 1925 and used as a school until 1949. In a case of Adaptive Reuse it is now a county maintenance building. If you use your imagination and remove the shed-type structure in the front, and extend the tall windows all the way across, you have the original school. The tall windows you see, are original.