It's like a Chevy Malibu being
similar to a BMW M3, one needs to learn the differences. That is not an overnight accomplishment. Hang in here and don't get too urgent in your learning quest. For one thing, the
Roosevelt dimes of earlier days were minted of a different technology, have a greater collector demand, and fewer of the earlier survive in collectible quantities, the latter greater quantities. This is a huge simplification, likely others can offer a better explanation.
Edited by 999fine
05/08/2015 10:35 am