My first official publication!
/I've been having a bit of luck with half-dollar roll-hunting lately, and after finding my fifth 1977 D DDO-001 Kennedy Half, I decided to do a little research. I suppose I got a bit carried away...because it turned into a full article!
It was originally published on April 18, 2013 in The Exchange, the online blog of the American Numismatic Association (ANA.) Here is a link to the article:
http://www.money.org/blog/posts/2013/april/18/some-new-research-on-1977-d-kennedy-half-dollars.aspx