I have several of these, one bought with some other tools (from the Indian subcontinent), and seen several others. Mine are not to hand, but I have a couple of images of some sold in France a year or two ago, plus a few others of similar tools...
Sorry I cannot be more specific, but at least you know it is not a unique piece, and that the method of construction (a steel blade inserted into an ornamented iron stock) was common in some (unknown) region...
As three turned up in France (and I also bought one of mine there) they may be from the French speaking regions of Puducherry or Chandannagar on the eastern coast of India (see:
http://en.wikipedia.org/wiki/Indian_French)
Note images 3 and 4 are from different tools (4 was sold without a handle) - the other seem to have a teak like wooden handle... (site has just changed order of images - now images 1 & 2)