Dao from Naga of Assam ?

[Marcus]

I was not familiar with this type until I read this thread a couple days ago. Yesterday I was watching a live auction and when this piece came up. I bid and won it. Their description was:

NAGA HEADHUNTER TWO-HANDED DAO SWORD
Garo People, of a form very seldom encountered, known as a Mil-Am. Wrought of a single piece of steel, the tang straight with spatulate pommel, the heavy blade obliquely angled at the forte, then straight and double-edged, with a cusped tip. The guard is composed of a steel rod passed through a punched aperture in the tang. 19th century. Patinaed overall.