I don't think i would feel qualified to put an exact date on it. It certain shows age and has a nice patina, especially on the belly.
It is a very nice carving and not a figure i can recall seeing exactly as such before. I love the figure's right hand position. Is the mendak that is with it gold w/rubies or is it just glass? It's always hard to tell such things w/ internet pictures. If they are rubies i would say they are fairly high end ones. Nice hilt regardless.