Truly collectors grade fine antique 18th century precious weapon. 
Please see last picture for an example of very similar dagger in collection of new york metropolitan museum.
Stunning antique dagger from southeast asia, golden triangle area: burma - laos - thailand. 
Circa 18th century. 
One-piece figural grip is carved from domestic cattle b0ne (mentioned to comply with ebay policy).
Cattle is a large domestic farm animal kept for their milk or meat. This animal is not threatened or endangered or protected by cites, the endangered species act, or any other state, federal, or international laws. It is legal to sell this item and this listing follows ebay rules.
Brass grip mount.
Superb quality hand forged decorated on both sides blade. 
No scabbard.
  size:
About 11 3/8 in. (28.9 cm) long.   
Blade is about 7 1/8 in. (18.1 cm) long.
  condition: 
Very good original antique condition with normal charming indication of age. 
Very sharp, high polished blade is excellent, shows very light old sharpening marks. 
Wear to hand engraved decoration on blade from centuries of cleaning and polishing.
Normal expected stable age cracks to one-piece grip.
No scabbard.