The only thing that honestly making me say Nodachi is the size of it. I'd have to agree that the style is more Tachi, however the overall length is 55", with a 40" nagasa(I think that's it, from kissaki to guard, please let me know if I'm wrong). I'm out of town right now, but when I get back, I'll try to get full pictures of it. I was thinking a Tachi sword was worn at the hip, while this sword would be way to long to wear at the hip. That's the primarily reason why I say Nodachi, but that's just because I don't really know the cut off between Tachi and Nodachi. If anyone knows, then please explain the difference, besides blade geometry. Thanks for the help so far, and sorry if it's not making sense.