Making matters even more interesting – and costly for Mercury dime enthusiasts – is that this variety was created at two mint locations: Philadelphia and Denver. This rare variety, created when two obverse dies were made by the impression of first a 1941 Mercury dime hub then one from 1942, is the most popular for the series and indeed quite rare. 1942 would have been a relatively uneventful year for the Mercury dime if not for a die variation that caused quite a stir in the numismatic community – the 1942/1 overdate variety.
