File:Instructor, Harvard, Massachusetts - Operation Alert, 1956, by the Federal Civil Defense Administration, from the Digital Commonwealth - commonwealth h128rg13n.jpg
Jump to navigation
Jump to search
Size of this preview: 734 × 600 pixels. Other resolutions: 294 × 240 pixels | 588 × 480 pixels | 940 × 768 pixels | 1,253 × 1,024 pixels | 2,507 × 2,048 pixels | 4,855 × 3,967 pixels.
Original file (4,855 × 3,967 pixels, file size: 1.25 MB, MIME type: image/jpeg)