Posted this a while back along with some other knives.  I am still really curious as to what it is and what it was used for.  Also can I clean it with metal polish (yes I am a novice).  I am posting it again by itself as would love some new information.  I am really frustrated to know EXACTLY what it is.  So far I don't have an exact answer.  How can I find out. Can I send it somewhere ? Some questions below.
What was it used for ?
Location of origin ?
Date ?
What animal is the horn from ?
Why is the handle so small, seems non practical.
A friend gave me this knife for free.  He has no use for it and said I can have it.  He knows nothing about knives,  but I want to give him something for it. How much should I give as a gesture