Origin of a knife / dagger?

[Conogre]

I ran accross this piece listed as an African dagger and find it somewhat interesting:
Edited : (active auction)
I've discussed it with the seller and she's every bit as curious about as I am and gave her full consent to see if anything further could be ascertained about it......my thoughts are that it has a Spanish feel to it, but as this isn't my area of expertise, I may well be wrong.
Since open auctions are a sensitive area, my bid is locked in and more than satifactory to her, and if I get outbid, I can live with it, no hard feelings (I thought I'd toss that in and save agonizing about ethics in advance)
Mike