Pictures of punch cards http://inventors.about.com/gi/dynamic/offsite.htm?site=http://www.fourmilab. ch/documents/univac/cards.html About hollerith http://inventors.about.com/library/inventors/blhollerith.htm When I worked for the state of Missouri in 1976-1977 they still manually sorted punch cards. There were card sorters that sorted the cards and dumped them into hoppers based on the punch that was selected. Thanks Mike mmcfadden(a)cmh.edu P.S. I'm the other CC member in Kansas City area.