Sweet, I have a WL half dollar that has a similar split or broken planchet, I sold it for just under $600 and then bought it back again about a year and a half later from my buyer. I'll have to shoot some photos of it and make up a post on it, these kind of errors seem pretty rare to me, If you don't mind me asking (don't want to be rude) what value do you place on this coin?
"Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013!
ANA Life Member #3288 in good standing since 1981, ANS, Early American Coppers Member (EAC), Colonial Coin Collectors Club member (C4), Conder Token Collector Club member (CTCC), Civil War Token Society (CWTS) member, Liberty Seated Collectors Club (LSCC) & Numismatic Bibliomania Society member (NBS), USMex, Member in good standing, 2¢ variety collector.
See my want page:
http://goccf.com/t/140440