Square white card-stock coin holder, most commonly called 2x2's, Mica or Micas or even just Flips. Place your Buffalo, Indian-head, and Liberty-head nickels in the holder, fold it over, and staple or tape it shut. The front and back of the coin is visible and descriptions of the coins can be written on the holder. They are commonly stored in 20 pocket binder pages or storage boxes.
Window is made of crystal clear archival polyester
