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National Education Association. Lapel button of National Education Ass...
The Theodor Horydczak Collection documents the architecture and social life of the Washington DC metropolitan area in the 1920s, 1930s, and 1940s.
National Education Association. Lapel button of National Education Ass...
Public domain photograph of midcentury American education, free to use, no copyright restrictions image - Picryl description
Seismometer readings studied in Mission Control Center
The seismometer reading from the impact made by the Apollo 15 Saturn S-IVB stage when it struck the lunar surface is studied by scientists in the Mission Control Center. Dr. Gary Latham (dark suit, wearing lape... More