H.E. Harris folder holds National Park Quarters from 2016-2021, P D Mints, along with history on the inside flap. This is a tri-fold folder that opens flat for all at once viewing with a total of 60 openings (8 opening are blank), then closes to book size for easy storage. The National Park name is printed below each opening of this folder. All H.E. Harris folders are made of acid-free materials for the protection and storage of your coins. The holes in this folder have a special LOCK-IN feature. But first, a word of caution: always hold a coin by the edge and never touch its obverse or reverse. We recommend you wear gloves when pressing your coins into place. Now that you are ready, simply place the coin with one edge tipped into the hole, and then press the high edge downward and toward the lowered edge (slantwise). Feel the snap? It's locked in! The National Park Quarters Coin Act of 2008 - Requires quarters, beginning in 2010, to have designs on the reverse depicting one national site in each state, the District of Columbia and territory of the United States. 56 Different designs will complete the program from 2010 through 2021. Folder measures 5.75" x 7.75" closed, 17.75" x 7.75" open. Description: H.E. Harris ISBN #: 978-079482881-3 Folder: National Park Quarter Folder Vol. II P D Year: 2016-2021 Size: 5.75 x 7.75 Color: Multicolored, grey Coin Composition: Outer layers of copper-nickel (75% copper, 25% nickel) bonded to an inner core of pure copper, the copper being visible when the coin is being viewed edge-on. Coin Diameter: 24.3mm Coin Weight: 5.67 grams Coin Edge: Reeded Qty: 1 Coins Not Included! Ships FREE! A great gift idea for any Coin Collector! Ships FREE applies to the United States Only! 20% restocking fee applies to non-defective returns. This is to cover the original cost of shipping you the item. Items returned must be received in new and unused condition. Returns received in damaged or obvious used condition will be refused.