| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| L.A.'s Central Library used some of the 7 million obsolete cards from this file to wallpaper the elevators | the card catalog | $800 | DJ | TO THE LIBRARY! | 2012-12-05 | #6493 | |
| In the 1870s this type of catalog began to replace the book-form catalog | Card Catalog | $600 | DJ | LIBRARIES | 1990-05-03 | #1319 |