You have found a 100% Genuine WW2 Japanese Army Officer sword! Also known as Type 95 Shin Gunto. Sword tang is chiselled signed "Ichiryushi Saku". Translate to "Ichiryushi made this". Also known as Ichihara Ichiryushi Nagamitsu or Nagamitsu. A very well known Rikugun Jumei Tosho (Army Approved Sword-smith) during WW2. 1940 era traditional hand made blade. A director of Okayama prison and utilized prison labor.
To help him polish and produce swords for the war effort. Listed in John Slough's book page 123-125.
Cutting edge is a little over 26 inch. Entire sword in scabbard is...
