Hello Wanawut and welcome to the forum. A very nice tenegre with great carving. Too bad you don't have the scabbard, or do you? Like Jim I cannot see how you could have had this so long without trying to find out more about it.
Sorry to say that I cannot tell you anymore than has already been said about either of your items. If you type tenegre into the search on the top of the page you will find more of these to compair with your own, some with wood hilts and some with horn.
Robert