These are never circulated coins certified by the Danbury Mint. Each tube of coin has been sealed with the Danbury Mint seal designating it's coin type i. Each tube is neatly tucked into a designed holder within the "Book-like" Album for secure holding. When closed and on the shelf, the collection gives the appearance of any other book on your bookshelf. The accompanied and attached COA is very detailed.It describes each unique issue of coin be it presidential dollar, quarter, etc. A unique and very distinctive way to secure your coin collection.