This is not my field but something about the hilt and guard jogged a distant memory of a sword that I once owned and was discussed on the old UBB Forum about 12 years ago. Here is the thread
and a picture of the sword I put up for discussion (apologies for the rather poor pictures).
The hilt and guard look very similar to the piece just mentioned and there is a cut out segment of the blade as well. At the time, Oliver responded that this was a Greek qama
. I hope this helps contribute to the discussion.