hi, the flyssa is one of those blades that have visual appeal, there is just something about them...
i'm not so sure how effective the larger ones would be in battle, but they sure look nice.
as you do not show the scabbard, here's a picture of what the scabbard looks like on my 16in. bladed flyssa. the curved variant is also interesting.
a search using 'flyssa' here will produce a lot more info and pictures.