The National Geographic Edition of Friday Knife Porn: 

This was sent to my by the author of When the Balloon Goes Up, which is a really cool blog that centers mostly around firearms topics, but it has some other good stuff as well and you should go check it out.

Back on topic — he included a note with the photo, explaining it:

Gile knifes have blades made from scrap metal and handles made from Aluminum.

The sheath is made from goat skin (with hair) and bound with wire.

This particular knife was purchased by a friend on a mission trip from the man that made it, as a thank you for loaning him gear  He was not a knife maker, and had made it for personal defense.

I believe the handle on this knife was made from melted soda cans.

 

The Giles knife: