Puzzling mei on 1940 sword

[Ron STL]

A local guy was asking about a WWII sword his relative gave him, and he was directed to me. All I can figure out is the date, Koki 2600, but the rest I havn't a clue what it says. I tried multiple times to connect a few idea but nothing. I was about to let him know what little I can say, but thought I'd see if anyone can actually pick out the makers name. If not, I'll declare it end of story. Almost resembles a so-called Chinese knock-off, but it really was a WWII bring-back. Will pass on what can be said. I will invite him over sometime soon to introduce him to swords since he is local. 

Ron STL

[SteveM]

桃井父兄有志一同

 

Momoi fukei yūshi ichidō

 

"From all of us in the Momoi family. "

 

It implies the male side of the family. 

 

 

[Ron STL]

2 hours ago, SteveM said:

 

 

Steve. you made this look way to simple, but thanks very much. I would have never, never figured this one out. A nice discovery, to see it gifted to the soldier heading out to war. I will actually see the sword very soon to see what quality it has, but the inscription alone will give its present-day owner much more appreciation for what "grandpa" brought back. Who knows, when he visits, he might become another collector. Again, many thanks for solving the mystery of what's on this nakago.

Ron STL