Misspelling. An error of spelling in the original model or die, not caught by the editor, and appearing on the issued piece. A prize example is an 1840 medal by engraver William Henry Bridgens (with an obvious lack of education) placed the head and name of seven presidents around one of George Washington for his Eight Presidents Medal. He misspelled Madison as MADDISON and Monroe as MUNROE! In numismatic cataloging this is called blundered inscription or blundered legend and should be noted by the alert cataloger wherever found. See also errors.
excerpted with permission from
For Artists, Makers, Collectors and Curators
COMPILED AND WRITTEN BY D. WAYNE JOHNSON