Unusual knife, Libya maybe? but not sure

[Rafngard]

Originally Posted by Gavin Nugent

Single silver spire is also correct for the type and I think the only type seen on these hippo tooth examples.

Is hippo tooth what these are made of? I've seen "marine ivory" used as a description most often. I have one, but I can't quite tell.

Also, I have one one sword length example with a single spike, but it's not silver.

Thanks,
Leif