Legal to Carry a Sword?

I have searched everywhere, even going to the extent of asking local police officers, and no one can give me an actual solid answer on this question. 

The question is:
In North Carolina is it legal to own and carry a sword as long as it is not concealed.  I know that it is unlawful to carry any weapon concealed.  And I know that is is unlawful to carry any weapon in or to certian legal and state buildings and events.  But I can’t determine if it is legal or not to simply carry a sword, sheathed but not concealed.  If you could help me out i would be greatful and most honored.
I haven’t found any North Carolina statute that prohibits openly carrying a sword.  It is possible, but unlikely, that a city or county ordinance might.