Hi Jim,
... and you are a kind man, needless to say
.
I am much obliged for your willing contribution to such a lost case.
You are absolutely right in that there were millions of sabres with the "human" sun symbol and zillions with the three bar hilt.
To tell the truth, i knew this was a long shot; hoping that, by some kind of miracle, someone had a sword with the same initials or recalled having seen them out there.
Soon i will visit the owner and check the initials style. Probably they are the signature type and not a maker's mark.
Eventualy also a couple pictures to post here.
Thanks again
Fernando