I guess what also puzzles me about the limited geographical occurence, currently attributed to the BB, is that it is simply an excellent sword, that you would think exportable, simply for its sheer functionality.
I can only speak for my own as pictured below, but even though the blade is thick at the spine, rather heavy and has a relatively wide flare towards the tip, it handles really
really well: It's heavy enough to deliver a serious stroke, but at the same time - I think due to the rather extensive fullering and the long yelman at the tip - it is incredibly fast in hand. A 10 year old girl would be able to wield this one to effect!

It's curved enough for a good slashing stroke, but at the same time not so curved that you wouldn't be able to stab with it.
Weapons27 - if you are still with us in this thread of yours - how does your longer variety handle?
Regarding this one of mine, I see similarities to the bronze handled BB above, although the lines at the ricasso and of the
azimat as well as the hand guard, clearly has been done in a simpler, more hurried style. As Wilhelm kindly pointed out, it looks somehow more industrially produced. As you can see, it is currently missing it's pommel-wingnut, so I guess I'm in the market for one of those?
Picture courtesy of Runjeet Singh:
Cheers, - Thor