Remember when going to the library was a low-tech ordeal? I recall these card holders stuffed with hand-written or typed 3 X 5 cards full of information about the author, subject, etc. We have no idea what one could do with these, but we just couldn't toss them. This is real Americana from the 50's - 60's. Both are in very good condition, both felted on the back. 23" X 3.5"