Vintage Rolodex Address Book Flat Straight Rail Flip Business Card Organizer

Hello, you're looking at a vintage Rolodex contact organizer. This model has cards centered on a flat plastic rail that is easy to flip through. It measures about 4.5 x 3.5 inches, and the cards are about 2 inches tall and double sided. All of the letter separation cards are present, and it has 100 cards between the letters and an extra 10 replacement cards behind the Z. Condition-wise, it's in good condition for its age. The front card has some wear at the rail and the cards are slightly yellowed, but otherwise great.