Just wow: I think now a joke. I mean, the Illuminati?
From recent update:
"Considering all information available to me, and based upon numerous points of triangulation, including personal observations and experiences, and personal histories pertaining to numerous individuals, going back over decades, and in fact, likely going back to the early Edo period in Japan, my opinion is that the authenticity of this blade may be a relatively superficial aspect of the mystery revolving around it. I believer the copper repair at the hilt of the sword was not the original repair commissioned by the Marine who brought the sword back from WWII, I believe this second repair may have been completed within the decade, most likely in an East Asian country, and if I had to guess specifically where, I would guess Indonesia or possibly Thailand. 110818 in DMY date format is August 11th, 2018, which corresponds to the date of the New Moon in 2018. I believe the number stamp on the copper repair on the sword hilt is in fact the signature ... of the Illuminati. My assessment is largely speculative and circumstantial, however, I suspect this may be the very first katana ever made by Echigo no kami Kanesada II, which may explain the Damascus style technique. For lack of a better term, I believe there is an Illuminati death curse on this blade, and the only way to remove this curse would be to return the blade to it's rightful heir. I believe there is also a means of determining who the rightful heir may be in that this person would likely be in possession of a katana hilt guard, likely forged in Japan in the 1970's - 1980's (prior to the second copper repair) that is fashioned to precisely match the exact dimensions of the copper repair at the location where the hilt guard would be located. "