Want some design porn for the weekend? Here you go. It's a small gallery of U.S. Nuclear Program business cards collected by Matthew Coolidge for The Center for Land Use Interpretation. The amazing story here is that these cards were essentially "rescued" or found at a place called The Black Hole, a surplus store that specializes sort of in finding things from the Los Alamos Scientific Laboratory history (when it gets thrown out).
Matthew Coolidge has compiled some of these business cards into The Los Alamos Rolodex collection which you can read more about here. There's even a book if you missed the exhibit. Pretty cool!