I realize there are those out there who never saw one of these. it was calld a catalog card. they were in drawers in libraries before there were computers.
today's organizing project turnd up a small cardboard box from OCLC addressd to Kent State's catalog department. inside were all the cards for my collection. when the library gave up its card catalog someone must've saved my cards & given them to me. this is probably the first time in 20 years that I opend that little box.
my first inclination was to pitch them. but then I figured that the box is so small….. why not keep it. I bet there aren't all that many old catalog cards left in the world.