General Note: Coins for years prior to <1972->, and gold coins, are covered by the sister publications: Standard catalog of world coins. 1601-1700; Standard catalog of world coins. Eighteenth century, 1701-1800; Standard catalog of world coins. 1801-1900; and: Standard catalog of world gold coins.Issues for <1994- > called also <21st ed.->.Vols. for <1972- > by Chester L. Krause and Clifford Mishler.Description based on current issue.