The Brave Heart looks like a good modern alternative. For another alternative check out some of Boker's knives. They post pages, so a direct link isn't available: Go to https://www.bokerusa.com/default2.asp , then select Online Shop | Fixed Blades | Arbolito | Corzo III. They have some knives with antler horn handles on the same page.

Here's a picture of the Corzo III:


Abax