The History of the Three-Cent Nickel
The Civil War affected almost every aspect of American life — including the availability of American coins. All silver coins were hoarded during the Civil War, even the three-cent silver, the tiniest silver coin the U.S. Mint had ever produced. Coin hoarding was creating a problem for post-Civil War commerce because there were so few coins in circulation to make change or buy a postage stamp (which at this time cost three cents).