The 1942/1 and 1942/1-D Mercury dimes are among the most desired dates of the series, with the overdates visible with the naked eye or a loupe. Both dimes, however, are frequently counterfeited or altered. So it is important to note the diagnostics explained in this article. 1942/1 The 1942/1 Mercury dime is one of the … Continue reading 1942/1 and 1942/1-D Key Date Dimes