It look's like a Navy, which is worth several hundred dollars more then the Army Officers sword, that one look's like the blade has been cleaned [scratch marks], should have been left alone. it's hard to tell on the value, I have an excellent 1943 Military Officer's sword WW 2 [not a family sword hand made, BIG BUCKS] The value on mine is $1200, if that one is a "WW 2 machine made" and the blade cleaned by a prof. I would say around $1500-$1700.
I am a long way from a Sword expert, I know just enough to get myself in trouble, I only own one.
It would help if the handle was off where you could see the writing on the sword.