IVORY FOR POMMEL

[David]

Originally Posted by Athanase

It's clearly Elephant ivory. Very nice patina.

Agreed. This is very clearly elephant ivory and the Schreger lines are quite evident.
As was mentioned earlier in this thread, only elephant ivory displays Schreger lines.
Technically speaking i don't believe sperm whale tooth is actually consider "ivory", though for general purposes it is often declared as "marine ivory" and displays many of the qualities of ivory.