You have found a 100% Genuine WW2 Japanese Army Officer sword! Also known as Type 98 Shin Gunto. Sword tang is chisel signed " Emura Saku". Also known as Chounsai Emura.
Listed in John Slough's book page 28. Emura started forging and polishing swords as a hobby. He was a director of Okayama Prison. He utilized inmates or prison labor to help him produce swords for the war effort.
Cutting edge is a little over 25 and half inch. Entire sword in scabbard is 41 inch.
Blade is traditional hand forged with outstanding gunome choji (wavy) tempered lines! Blade shows original war time polish,...