Can anyone help me decipher the Mei found upon a Japanese Naval Officer's Kyu-gunto? It has different characters on each side along the tang found under the sharkskin grip. The blade is extremely sharp! I'm no good with Asian lettering, however the sword is pretty incredible and I'd love to know if it is dated, maker signed, & where it was made. Has an incredibly intricate sword tassel & ball knot that is orange/red & olive green. The hilt backstrap even has a natural Ruby & Blue Sapphire. One pin holds blade in place. Blade registers 99.99% steel on XRT Spectrometer and definitely was hand forged.
Thanks in advance!