Thanks Guys. I'm amazed I was that close. I see that there are 21 Kaneharu sword smiths out of Mino province from Koto to Showa eras (according to Nihonto Club). How in the heck do you figure out which smith and what date? I guess this is where really knowing your blades pays off? The sword is in WWII military configuration. I'm guessing here, but if it was showa period, wouldn't it have the showa kanji and different style date signature? Being it has the province, and maker, I would guess it is older. The tang throws me off though, if it's an old blade it should be rusty more black than red right? This one is slightly rusty...
I am a total novice here...