Industry WIKI

Coin cleaning is the controversial process of removing undesirable substances from a coin's surface in order to make it more attractive to potential buyers. Coin cleaning is not advised as it generally decreases its value by removing the coin's patina, the surface valued by collectors. Whether cleaning coins is necessary is a subject disputed among the numismatic community. Those that ar

Coin roll hunting (often abbreviated as CRH) is the hobby of searching and sorting coinage pulled from circulation for collectible coins. This is achieved through obtaining rolled coin, boxed coin, or bagged coin from banks and credit unions. A variant of this practice involves banknotes and is carried out in essentially the same fashion, normally to search for unusual (fancy) serial num