If anyone still cares: the date configuration of a 1921 Dime has the date slanting upwards to the right-like no other Dime to be considered for alteration to 1921 (e.g.: 1924, 1927). And it can't really be those two dates, as starting in 1923 the rims are thinner and the dishiness of the field to the rim had disappeared. So, if your 1921 Dime has a slanting date-the odds of it being non-altered are very good
























