Topographic Maps: "Grid Distance and Elevation" pt1-2 1966 US Army Training Film

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Topographic Maps: "Grid Distance and Elevation" pt1-2 1966 US Army Training Film"USE OF MILITARY GRID SYSTEM TO LOCATE POSITIONS; USE OF GRAPHIC SCALES TO MEASURE DISTANCE; USE OF CONTOUR LINES TO IDENTIFY TOPOGRAPHIC DETAIL."US Army Training Film TF5-3719Public domain film from the National Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied.The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and equalization (the resulting sound, though not perfect, is far less noisy than the original).

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