This looks like a disguised shin gunto WW2 era blade to me. The leather wrap, the saya (scabbord) is painted exactly the same color green as mine (a '1945 NCO Wood Hilt'), the missing koiguchi (throat hardware) which held the catch that prevents the accidental withdrawing of the blade (the catch pin is visible in the close-up 3rd photo), the tsuka very resembles that of the '1st Model NCO Copper Hilt' and I'll bet there is a 'serial number' under the copper habaki at the base of the blade...
http://home.earthlink.net/~steinrl/military.htm
http://home.earthlink.net/~steinrl/military.htm