This is a rather extraordinary piece and one of the rarer types of Indo-Persian antique daggers.
This one whilst it is an antique is not as old as many of the original examples which can date as far back as the early 18th century, this one appears to be far newer dating to nearer 1900 and potentially even made for the European market, either purchased from India or through European auctions much like the pieces sourced by Richard Wallace in the mid to late 19th century.
The Zira Bouk is a dagger intended to pierce chain armour with its large tip designed to spread the links and penetrate. The blade is steel with gold inlay and horn grips. This dagger can be yours for £650 or best offer.