Hi Martin,
Thanks for the kind words.
You are of course right on the map, it is very approximate at best and should for sure push a bit further north and probably further east as well.
You have another good point about the wood and horn handled Berber swords, while most are found with saber blades somewhere I have photos of a really interesting example with horn and brass covered hilt with a straight trade blade.
There is always more information to add I guess and I will keep trying to do my best to learn and present more information.
Iain