Looks like mid 20th century souvenier/tourist stuff thats been roughly sharpened and treated like carp.
Really can't understand why its achieved such a price. Blade looks like a rough piece of shaped steel plate. Look at the thickness at the hilt. Pictures 9-10 show close-ups of the balde and what seem to be the remains of semi-circular grinder marks rusted in.
I guess I'm in a minority though, as it made the kind of money that would buy a fairly good weapon, so others think its 'legit'.