It's a crap shoot what Mike is able to bring. Basically, leftovers from the Shop of overruns for the Busse Company Store, Knob Creek or Ganzas.
The EH3 you've got isn't actually the model name/number but the military company designation that they were originally made for... these were part of the overrun and sold at an online sale on Bladeforums. A few still left at the shop, I guess, and they shipped them to Mike.
That was the Swamp Rat Uncle Mini Mojo. (The Mini Mojo has a blade catch.) It is tan canvas micarta grips with desert olive finish. The steel is SR101. Basically 52100 with a proprietary Swamp Rat (Busse) heat treat.
Mini Mojo
Uncle
Sorry, I'm a Swamp Rat mod on Bladeforums and can geek out.