File #570573: Original images: ca.300dpi, grayscale tif (from pdf) files approx. 2600 by 3230 pixels. Editing: re-sampled to 600dpi, converted to black and white tif files, de-skewed, and set uniform margins. File #679645: Original images: ca.150dpi color jpg files approx. 1500 by 1980 pixels. Editing: re-sampled to 600dpi, converted to black and white tif files, de-skewed, and set uniform margins. File #854280: Original images: ca.400dpi, color tif (from pdf) files approx. 3605 by 4695 pixels. Editing: re-sampled to 600dpi, converted to black and white tif files, de-skewed, and set uniform margins.