For those of you who are interested in the difference between strike doubling and die doubling...check out this ebay item, 72S Kennedy Half Dollar DDO, which is strike doubling advertized as a Doubled Die Obverse. http://cgi.ebay.com/1972-S-Kennedy-...619QQihZ014QQcategoryZ524QQrdZ1QQcmdZViewItem Larry Nienaber
