Hi Gonzalo,
You're partially right, but the thing is, we don't have a deep historical record of the flyssa either, and an interest in the past goes back several hundred years in the Mediterranean (as does tourism). In the absence of archeological evidence for flyssa development, we can't sort out whether the flyssas are:
1. A cultural survival from the Iron Age (akin to katanas allegedly being a half ken), or more improbably from the Bronze Age
2, A independent local development,
3. A local adaptation of a yataghan, kopis, etc.
4. A redevelopment, based on either someone finding an old blade (tomb raiding, perhaps) or an old sculpture or other illustration.
As for the bronze swords, before the economy did it's little bubble and burp recently, I was thinking of going to the UK and making a replica myself (
link). Looks like fun. Personally, if I'm going to own an antenna sword, it might be fun to cast it myself, with help from a smith.
F