I'd like to know too.

https://en.wikipedia.org/wiki/First_Army_(United_States)

No, Us army 1St Army patch, as Allan stated. 

They could have been from another US Army unit, since they indicated they came from US states.

I bought 2 of these housings for the ba-38 clones. Takes 36 a23 batteries. I wanted a more realistic look so I made sleeves for them. I used cereal boxes since there thin and seem to be about the same cardboard sleeve over the original I used to have(use tje brown side to paint. Not the printed glossy side). I made about 4 attempts and the last one I designed looks pretty good. I used flat black for the positive end. And printed out my labels using my cell and HP printer. Original used lamination paper. But found rubber glue to work best and look more authentic.  I use them in my mine detector and bc611s. There not 100% correct. But look good a displays and events. The one on the right with the 2 open sleeves is the complete version.

So im building up a static display for camp crowder missouri. I side tracked to build up a small pigeon corps display. Im hoping to start displaying my crowder items in a couple years when I retire.  Camp crowder is 19 miles from my house. 

Awesome piece, and great research. I rarely use AI but it seemed to work well for you here!

Well, I looked back and found in July or 2025 someone asked the same question. I just won one with the dagger style blade, it's not in hand for me to add pics. The Auction house will send the owners family some questions for me in the chance they may know more on the knife prior to the owner passing. One can only hope.     Does anyone have info on this company and their knife making?! I hope so.   fingers crossed,   Mark

Thanks - I'm pretty certain they all signed together so a navy guy wouldn't make sense. I did find that Frank Yost but I don't believe they were anywhere at the same time as the 111th. It will probably remain a mystery. It's interesting that he appears to spell his name Franck Yost and not Frank maybe hinting at a German upbringing.