African knife with copper (?) blade. Info requested!

[shayde78]

So I was looking through old threads to try to find information on another copper/bronze blade I posted in its own thread. However, the comment here that copper was sometimes used for African blades to denote status and/or rank made me think of another item I have. The leather work seems decidedly African (the last two pics should show the hilt and sheath stitching). The blade is decidedly copper. When I bought it, I took the chance that the color of the blade was a weird photo trick from the flash, knowing that it was probably not steel, though. When I saw it in person, I presumed the copper blade was something unloaded on tourists. However, if there is a chance this could have some greater significance, I'm eager to learn more.

Thanks,
-Rob