Low resolution scanned text dataset for optical character recognition

A collection of scanned pages of English text designed for testing low resolution OCR systems.  There are 11 different pieces of text, each of which contains 5 pages of text.  Each of these 55 pages is typeset in 18 different fonts and then scanned at 300 dpi, producing a total of 990 pages of scanned text.  Downsampled 60 dpi and 75 dpi versions are included.