In the 1988 reprinted Engineer Cloth Catalog (Part 5), its catalog number is C8, which still doesn't help.

That's a tough one. It does not have the muted edges/ details a lost wax casting of an original would exhibit. Originals were sand cast as this one appears to be. I would have this accessed by one of the major Confederate Belt Plate dealers online: Will Gorges (Battleground) or Old South Antiques or another well-known dealer. These have been replicated almost since the late 19th Century and some are very, very good. High dollar if real. 

Hmm, was this areas on the other side of the Richardson Highway, as you know there were some ranges of the built type, like a Pistol Range etc, if so wasn't aware of heavy stuff being fired off over there, just though the heavy stuff, you know Arty, Aerial Rockets etc was fired at either Greely or Eielson.

The Halo/Scuba patch was also made in Korea.  For my last trip to Korean in 1982 when I was with the 7th, we were housed in barracks before returning to Fort Bragg that had a tailor/embroidery shop next door and someone had the patches made up before departure   Also, the quality was better.

917601,   Thank you very much for the links and your help here!  Good stuff.  It does appear that this round is missing that 2" brass section.  The round head is actually solid steel, and I will try to take some better pictures under natural light if needed.  This was literally the only "military" item that they had at the sale, and I had to ask for it and it was in the garage.  I don't collect anymore but enjoy looking for "stuff".  As is, what do you think it would be worth?   Thank you again!   OD

Looks like a swim team/club pool patch to me. Not exactly a lot of water around Mt. Home...   Randy

Excellent example. As noted in the comments above by manatee, I would also add that one of the typical tales of Bailey Banks in Biddle manufactured peace is the detail with which the enamel work is executed. You’ll notice the framing of the stars is very crisp and detailed. The enamel work is in inside the framing of the star with no bleed over. 

Great Job Matt! And Blacksmith is correct 139th!

Thanks, this was the one I was thinking of.   https://www.warrelics.eu/forum/attachments/ww1-allies-great-britain-france-usa-etc-1914-1918/877914d1441096340t-u-s-m-1917-m-1918-trench-knivesa-yes-just-wooden-handled-ones-scabbard-3.jpg    

Greetings,   This thread will have images of the sheaths you were referencing.   https://www.warrelics.eu/forum/ww1-allies-great-britain-france-usa-etc-1914-1918/u-s-m-1917-m-1918-trench-knivesa-yes-just-wooden-handled-ones-577741/   Best,   V/r Lance