I agree with Andrew and Tom, this appears to be a tulwar-hilted khanda. The trident-like symbol may be Sikh in origin, while the khanda itself is a religious symbol for the Sikhs. The manner of the blade sharpening, with quite a prominent "bite" into the blade where it starts at the forte, and perhaps the rather squared-off ends to the quillions might also suggest a Sikh (Punjab) origin -- but that could be reading too much. Jim McD. can give you a better idea about the origin of this one.
|