Amboyna Burl.    
A burl is a growth on the side of the tree or branch in which the grain has grown in a deformed manner. It often looks like a rounded growth on the tree. Amboyna is native to the jungles of Cambodia and Myanmar in Southeast Asia. This pen has Titanium gold plated fittings and is supplied with a German made Hauser refill. Unfortunately this pen has been sold but a similar pen can be made for you for $70