Stone shows a knife called a Bhuj Kutti, sometimes called an 'elephant knife' described as a heavy (?) single edged knife blade mounted inline with a single straight handle approx 20" long (not specified if OAL or just length of handle). The blade form illustrated is not the same, but there are similarities in the overall construction. I do not have a scanner so cant post the picture;
It is possible that yours is a varient, your pictures suggest that the knife is vintage rather than older, is this the case?
(sorry ended up posting in both threads

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It seems that the symbol of Kali is the swastika, info link below, I would think that this symbol would feature on a ceremonial knife that had decoration...unless there are others ?
http://64.233.183.104/search?q=cache...lnk&cd=5&gl=uk